Not afraid of Bystial, can synchronize opponent's turn, has the ability to restore goods as well as has a Mid-range playstyle, this is a deck with stable gameplay, has the ability to combo 1 card as well as combine well with many engine mills.

Crystron Gameplay Guide
Sections covered in this guide:
CORE
Crystron Sulfador (x3)

 
    
 
    

 WATER
WATER 5
                            5Crystron Sulfador
- ATK: 
- 1900 
- DEF: 
- 2250 
If this card is in your hand or GY: You can target 1 "Crystron" card you control; destroy it, and if you do, Special Summon this card, also you cannot Special Summon from the Extra Deck for the rest of this turn, except Machine monsters. If this card is Normal or Special Summoned: You can send up to 2 "Crystron" cards with different names from your Deck to the GY, except "Crystron Sulfador". You can only use each effect of "Crystron Sulfador" once per turn.
New support, just by being summoned will send 2 Crystron monsters/spells/traps from the deck to the grave, is a very good combo card and starter of the deck
Crystron Sulfefnir (x3)

 
    
 
    

 WATER
WATER 5
                            5Crystron Sulfefnir
- ATK: 
- 2000 
- DEF: 
- 1500 
If this card is in your hand or Graveyard: You can discard 1 "Crystron" card, except "Crystron Sulfefnir"; Special Summon this card in Defense Position, then destroy 1 card you control. If this card on the field is destroyed by battle or card effect: You can Special Summon 1 "Crystron" monster from your Deck in Defense Position. You can only use each effect of "Crystron Sulfefnir" once per turn.
old but gold
Crystron Smiger (x3)

 
    
 
    

 WATER
WATER 3
                            3Crystron Smiger
- ATK: 
- 1000 
- DEF: 
- 1800 
You can target 1 face-up card you control; you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Machine-Type Synchro Monsters, also, destroy that card, and if you do, Special Summon 1 "Crystron" Tuner from your Deck. You can banish this card from your Graveyard; add 1 "Crystron" Spell/Trap Card from your Deck to your hand. You can only use 1 "Crystron Smiger" effect per turn, and only once that turn.
Search for 1 Crystron spell/trap by banishing yourself from the grave, search for disrupt and a deck combo card
Crystron Thystvern (x1)

 
    
 
    

 WATER
WATER 3
                            3Crystron Thystvern
- ATK: 
- 1500 
- DEF: 
- 1500 
You can target 1 face-up card you control; you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Machine-Type Synchro Monsters, also, destroy that card, and if you do, Special Summon 1 "Crystron" Tuner from your Deck. You can banish this card from your Graveyard; add 1 "Crystron" monster from your Deck to your hand, except "Crystron Thystvern". You can only use 1 "Crystron Thystvern" effect per turn, and only once that turn.
Same as Smiger but searches Crystron monsters from deck to hand
Crystron Tristaros (x2-3)

 
    
 
    

 WATER
WATER 2
                            2Crystron Tristaros
- ATK: 
- 800 
- DEF: 
- 2000 
When your opponent activates a card or effect (Quick Effect): You can Special Summon 1 "Crystron" monster from your Deck, except "Crystron Tristaros", then immediately after this effect resolves, Synchro Summon 1 Machine Synchro Monster using monsters you control, including that monster. You can banish this card from your GY; destroy 1 Synchro Monster you control, and if you do, Special Summon 2 "Crystron" monsters from your Deck, also you cannot Special Summon from the Extra Deck for the rest of this turn, except Machine monsters. You can only use each effect of "Crystron Tristaros" once per turn.
super cool
Crystron Citree (x1)

 
    
 
    

 WATER
WATER 2
                            2Crystron Citree
- ATK: 
- 500 
- DEF: 
- 500 
During your opponent's Main Phase or Battle Phase: You can target 1 non-Tuner monster in your Graveyard; Special Summon it, but it has its effects negated (if any), and if you do, immediately after this effect resolves, Synchro Summon 1 Machine-Type Synchro Monster using only that monster and this card (this is a Quick Effect). These Synchro Materials are banished instead of being sent to the Graveyard. You can only use this effect of "Crystron Citree" once per turn.
Synchro during your opponent's turn (Main phase or Battle phase) by selecting 1 non-Tuner monster from your Graveyard, drawing it to the field, and Synchro by using that monster and this card as materials
Crystron Quan and Crystron Rion (x0-1)

 
    
 
    

 WATER
WATER 1
                            1Crystron Quan
- ATK: 
- 500 
- DEF: 
- 500 
During your opponent's Main Phase or Battle Phase: You can Special Summon 1 non-Tuner monster from your hand, but it has its effects negated (if any), and if you do, immediately after this effect resolves, Synchro Summon 1 Machine-Type Synchro Monster using only that monster and this card (this is a Quick Effect). You can only use this effect of "Crystron Quan" once per turn.

 
    
 
    

 WATER
WATER 3
                            3Crystron Rion
- ATK: 
- 500 
- DEF: 
- 500 
During your opponent's Main Phase or Battle Phase: You can target 1 of your banished non-Tuner monsters; Special Summon it, but it has its effects negated (if any), and if you do, immediately after this effect resolves, Synchro Summon 1 Machine-Type Synchro Monster using only that monster and this card (this is a Quick Effect). These Synchro Materials are shuffled into the Deck instead of being sent to the Graveyard. You can only use this effect of "Crystron Rion" once per turn.
Synchro turn opp awesome salad
Crystron Prasiortle and Crystron Rosenix (uhmmmmmm)

 
    
 
    

 WATER
WATER 2
                            2Crystron Prasiortle
- ATK: 
- 500 
- DEF: 
- 2000 
You can target 1 face-up card you control; you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Machine-Type Synchro Monsters, also, destroy that card, and if you do, Special Summon 1 "Crystron" Tuner from your Deck. You can banish this card from your Graveyard; Special Summon 1 "Crystron" monster from your hand. You can only use 1 "Crystron Prasiortle" effect per turn, and only once that turn.

 
    
 
    

 WATER
WATER 4
                            4Crystron Rosenix
- ATK: 
- 1800 
- DEF: 
- 1000 
You can target 1 face-up card you control; you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Machine-Type Synchro Monsters, also, destroy that card, and if you do, Special Summon 1 "Crystron" Tuner from your Deck. You can banish this card from your Graveyard; Special Summon 1 "Crystron Token" (Machine-Type/WATER/Level 1/ATK 0/DEF 0), but it cannot be Tributed. You can only use 1 "Crystron Rosenix" effect per turn, and only once that turn.
bird : ok but level 4 and token laying doesn't fit the current gameplay very well
Crystron Inclusion (x3)

 
    
 
    

 Spell
Spell Continuous
                        ContinuousCrystron Inclusion
When this card is activated: You can add 1 "Crystron" card from your Deck to your hand, except "Crystron Inclusion". The first time each "Crystron" monster you control would be destroyed by battle each turn, it is not destroyed. You can banish this card from your GY, then target 1 "Crystron" monster in your GY; Special Summon it. You can only use this effect of "Crystron Inclusion" once per turn. You can only activate 1 "Crystron Inclusion" per turn.
One card combo of the deck, both searching for Sulfador and being the target of Sulfador 's shot, in the grave has the ability to banish to pull back 1 Crystron monster in the grave for the combo, truly a king
Crystron Cluster (x1)

 
    
 
    

 Trap
Trap Continuous
                        ContinuousCrystron Cluster
"Crystron" cards you control cannot be banished by your opponent's card effects. You can target 1 face-up card on the field, or you can target 2 if you control a "Crystron" Synchro Monster; shuffle 1 "Crystron" card from your GY or banishment into the Deck, except "Crystron Cluster", and if you do, destroy the targeted card(s). You can only use this effect of "Crystron Cluster" once per turn.
Protects Crystron cards from being banished by enemy card effects.
Crystron Impact (x0-1)

 
    
 
    

 Trap
Trap Normal
                        NormalCrystron Impact
Target 1 of your banished "Crystron" monsters; Special Summon it, and if you do, if your opponent controls any face-up monsters, change their DEF to 0. During either player's turn, except the turn this card was sent to the Graveyard, when a card or effect is activated that targets a "Crystron" monster you control: You can banish this card from your Graveyard; negate that effect.
return + guarantee
Crystron Eleskeletus (x2)

 
    
 
    

 WATER
WATER 7
                            7Crystron Eleskeletus
- ATK: 
- 2600 
- DEF: 
- 2100 
1 Tuner + 1+ non-Tuner monsters All monsters your opponent controls lose 500 ATK/DEF. You can only use each of the following effects of "Crystron Eleskeletus" once per turn. If this card is Synchro Summoned: You can add 1 "Crystron" card from your GY or banishment to your hand. If this Synchro Summoned card is destroyed by battle or card effect: You can Special Summon 1 "Crystron" monster from your GY or banishment.
When Synchro Summoned, can pick up 1 Crystron card from the grave or banished to hand (restored)
Crystron Quariongandrax (x1)

 
    
 
    

 WATER
WATER 9
                            9Crystron Quariongandrax
- ATK: 
- 3000 
- DEF: 
- 3000 
2 or more Tuners + 1 non-Tuner monster If this card is Synchro Summoned: You can target monsters your opponent controls and/or in their Graveyard, up to the number of Synchro Materials used for the Synchro Summon of this card; banish them. If this Synchro Summoned card is destroyed by battle or card effect: You can target 1 banished monster, except this card; Special Summon it to your field.
boss leveled with 2 Tuner (or more) and 1 non-Tuner monster
Crystron Halqifibrax (Heaven and earth are equal, I alone am supreme)

 
    
 
    

 WATER
WATERCrystron Halqifibrax
- ATK: 
- 1500 
- LINK-2 
Link Arrow:
 Bottom-Left
 Bottom-Left
 Bottom-Right
 Bottom-Right
2 monsters, including a Tuner If this card is Link Summoned: You can Special Summon 1 Level 3 or lower Tuner from your hand or Deck in Defense Position, but it cannot activate its effects this turn. During your opponent's Main Phase or Battle Phase (Quick Effect): You can banish this card you control; Special Summon 1 Tuner Synchro Monster from your Extra Deck. (This is treated as a Synchro Summon.) You can only use each effect of "Crystron Halqifibrax" once per turn.
nah i'd win
Staple
handtrap & staple

 
    
 
    

 FIRE
FIRE 3
                            3Ash Blossom & Joyous Spring
- ATK: 
- 0 
- DEF: 
- 1800 
When a card or effect is activated that includes any of these effects (Quick Effect): You can discard this card; negate that effect. ● Add a card from the Deck to the hand. ● Special Summon from the Deck. ● Send a card from the Deck to the GY. You can only use this effect of "Ash Blossom & Joyous Spring" once per turn.

 
    
 
    

 Spell
Spell Quick
                        QuickCrossout Designator
Declare 1 card name; banish 1 of that declared card from your Main Deck, and if you do, negate its effects, as well as the activated effects and effects on the field of cards with the same original name, until the end of this turn. You can only activate 1 "Crossout Designator" per turn.
Because the deck is a one card combo and there are many ways to access the combo, you can play handtrap as you like because you hire a lot, but limit the deck to 40-45 cards, otherwise it will affect the card mill of other hires.
Horus & Millennium

 
    
 
    

 LIGHT
LIGHT
Number 38: Hope Harbinger Dragon Titanic Galaxy
- ATK: 
- 3000 
- DEF: 
- 2500 
2 Level 8 monsters Once per turn, when a Spell Card or effect is activated on the field (Quick Effect): You can negate that effect, and if you do, attach that card to this card as material. When an opponent's monster declares an attack: You can detach 1 material from this card; change the attack target to this card and perform damage calculation. If a face-up Xyz Monster(s) you control is destroyed by battle or card effect: You can target 1 face-up Xyz Monster you control; it gains ATK equal to 1 of those destroyed monster's original ATK.

 
    
 
    

 EARTH
EARTH 6
                            6Golem that Guards the Millennium Treasures
- ATK: 
- 2000 
- DEF: 
- 2200 
The activation of your "Millennium Ankh" cannot be negated. You can only use each of the following effects of "Golem that Guards the Millennium Treasures" once per turn. If this card is in your hand: You can place it in your Spell & Trap Zone as a face-up Continuous Spell. While this card is a Continuous Spell: You can either pay 2000 LP, or reveal 1 "Millennium Ankh" in your hand; Special Summon this card, then you can add 1 "Wedju Temple" from your Deck to your hand.

 
    
 
    

 DARK
DARK 8
                            8Imsety, Glory of Horus
- ATK: 
- 3000 
- DEF: 
- 1800 
If you control "King's Sarcophagus", you can Special Summon this card (from your GY). You can only Special Summon "Imsety, Glory of Horus" once per turn this way. You can only use each of the following effects of "Imsety, Glory of Horus" once per turn. You can send 2 cards from your hand to the GY, including this card; add 1 "King's Sarcophagus" from your Deck to your hand, then you can draw 1 card. If another card(s) you control leaves the field by an opponent's card effect, while this card is in your Monster Zone (except during the Damage Step): You can send 1 card on the field to the GY.

 
    
 
    

 WIND
WIND 8
                            8Hapi, Guidance of Horus
- ATK: 
- 2400 
- DEF: 
- 1600 
If you control "King's Sarcophagus", you can Special Summon this card (from your GY). You can only Special Summon "Hapi, Guidance of Horus" once per turn this way. If another card(s) you control leaves the field by an opponent's card effect, while this card is in your Monster Zone (except during the Damage Step): You can target 2 cards that are banished and/or in the GYs; either add both to the hand or shuffle both into the Deck. You can only use this effect of "Hapi, Guidance of Horus" once per turn.

 
    
 
    

 LIGHT
LIGHT
Number 90: Galaxy-Eyes Photon Lord
- ATK: 
- 2500 
- DEF: 
- 3000 
2 Level 8 monsters If this card has a "Photon" card as material, it cannot be destroyed by card effects. You can only use each of the following effects of "Number 90: Galaxy-Eyes Photon Lord" once per turn. ● When an opponent's monster activates its effect (Quick Effect): You can detach 1 material from this card; negate that monster's effect, and if the detached material was a "Galaxy" card, destroy that card. ● During your opponent's turn (Quick Effect): You can take 1 "Photon" or "Galaxy" card from your Deck, and either add it to your hand or attach it to this card as material.

 
    
 
    

 FIRE
FIRE 8
                            8Snake-Eyes Doomed Dragon
- ATK: 
- 3000 
- DEF: 
- 2500 
1 "Snake-Eye" monster + 1 Illusion monster Must be either Fusion Summoned, or Special Summoned by sending 2 face-up Monster Cards from your Spell & Trap Zone to the GY. If this card is Special Summoned: You can target 1 face-up monster on the field; place it face-up in its owner's Spell & Trap Zone as a Continuous Spell. You can only use this effect of "Snake-Eyes Doomed Dragon" once per turn.

 
    
 
    

 DARK
DARK
The Zombie Vampire
- ATK: 
- 3000 
- DEF: 
- 2800 
2+ Level 8 monsters If you use a monster(s) with a Level that is owned by your opponent for the Xyz Summon of this card, treat it as Level 8. Neither player can target this card with effects of Special Summoned monsters, except those Special Summoned from the GY. You can detach 1 material from this card; each player sends the top 4 cards from their Deck to the GY, then if any monsters were sent to either GY by this effect, you can Special Summon 1 of those monsters to your field. You can only use this effect of "The Zombie Vampire" once per turn.

 
    
 
    

 EARTH
EARTH 8
                            8Sengenjin Wakes from a Millennium
- ATK: 
- 2750 
- DEF: 
- 2500 
Cannot be destroyed by monster effects. You can only use each of the following effects of "Sengenjin Wakes from a Millennium" once per turn. If this card is in your hand: You can place it in your Spell & Trap Zone as a face-up Continuous Spell. While this card is a Continuous Spell: You can either pay 2000 LP, or reveal 1 "Millennium Ankh" in your hand; Special Summon this card, then you can add 1 "Millennium" monster from your Deck to your hand.

 
    
 
    

 Spell
Spell Continuous
                        ContinuousKing's Sarcophagus
"Horus" monsters you control cannot be destroyed by card effects that do not target them. You can send 1 card from your hand to the GY; send 1 "Horus" monster from your Deck to the GY. You can only use this effect of "King's Sarcophagus" up to four times per turn. Once per turn, at the start of the Damage Step, if your "Horus" monster battles an opponent's monster: You can send that opponent's monster to the GY.

 
    
 
    

 Spell
Spell Field
                        FieldWedju Temple
During your Main Phase: You can place 1 monster from your hand in your Spell & Trap Zone as a face-up Continuous Spell, then place 1 "Millennium" monster from your Deck in your Spell & Trap Zone as a face-up Continuous Spell. You can only use this effect of "Wedju Temple" once per turn. If a face-up "Millennium" monster(s) you control is destroyed by battle or card effect, you can place it in your Spell & Trap Zone as a face-up Continuous Spell, instead of sending it to the GY.
mainly go for The Zombie Vampire , mill 5 cards top deck, if lucky you get Smiger, search for one card combo, other Crystrons also have a bunch of effects in the grave
Samurai Destroyer and F.A. Dawn Dragster (synchro level 7)

 
    
 
    

 EARTH
EARTH 7
                            7Samurai Destroyer
- ATK: 
- 2600 
- DEF: 
- 1400 
1 Tuner + 1+ non-Tuner monsters If this card battles an opponent's monster, your opponent cannot activate cards or effects until the end of the Damage Step, also that opponent's monster has its effects negated during the Battle Phase only. If this face-up card in its owner's control leaves the field because of an opponent's card effect: You can target 1 Machine monster in your GY; Special Summon it.

 
    
 
    

 LIGHT
LIGHT 7
                            7F.A. Dawn Dragster
- ATK: 
- 0 
- DEF: 
- 2000 
1 Tuner + 1+ non-Tuner monsters Gains ATK equal to its Level x 300. If this card attacks a Defense Position monster, inflict piercing battle damage. Each time a "F.A." Spell/Trap Card or effect is activated: You can increase this card's Level by 1. Once per turn, when your opponent activates a Spell/Trap Card or effect (Quick Effect): You can reduce this card's Level by 2, and if you do, negate the activation, and if you do that, destroy that card.
easy to get by using Tristaros to pull a Level 5 monster directly from the deck and then synchro
Accel Synchro Stardust Dragon, Baronne de Fleur and Accel Synchron (Baroness)

 
    
 
    

 WIND
WIND 8
                            8Accel Synchro Stardust Dragon
- ATK: 
- 2500 
- DEF: 
- 2000 
1 Tuner + 1+ non-Tuner monsters If this card is Synchro Summoned: You can Special Summon 1 Level 2 or lower Tuner from your GY. During the Main Phase (Quick Effect): You can Tribute this card; Special Summon 1 "Stardust Dragon" from your Extra Deck (this is treated as a Synchro Summon), then, immediately after this effect resolves, Synchro Summon 1 Synchro Monster using monsters you control as material. This turn, the monsters Synchro Summoned by this effect are unaffected by your opponent's activated effects. You can only use each effect of "Accel Synchro Stardust Dragon" once per turn.

 
    
 
    

 WIND
WIND 10
                            10Baronne de Fleur
- ATK: 
- 3000 
- DEF: 
- 2400 
1 Tuner + 1+ non-Tuner monsters Once per turn: You can target 1 card on the field; destroy it. Once while face-up on the field, when a card or effect is activated (Quick Effect): You can negate the activation, and if you do, destroy that card. You can only use the previous effect of "Baronne de Fleur" once per turn. Once per turn, during the Standby Phase: You can target 1 Level 9 or lower monster in your GY; return this card to the Extra Deck, and if you do, Special Summon that monster.

 
    
 
    

 DARK
DARK 5
                            5Accel Synchron
- ATK: 
- 500 
- DEF: 
- 2100 
1 Tuner + 1+ non-Tuner monsters Once per turn: You can send 1 "Synchron" monster from your Deck to the GY, then activate 1 of these effects; ● Increase this card's Level by the Level of the sent monster. ● Reduce this card's Level by the Level of the sent monster. During your opponent's Main Phase, you can (Quick Effect): Immediately after this effect resolves, Synchro Summon using this card you control. You can only Synchro Summon "Accel Synchron" once per turn.
Accel Synchron : level 5, go with another Level 5 monster to get Baronne
Cyber Dragon Infinity and Cyber Dragon Nova (Cyber Dragon)

 
    
 
    

 LIGHT
LIGHT
Cyber Dragon Infinity
- ATK: 
- 2100 
- DEF: 
- 1600 
3 Level 6 LIGHT Machine monsters Once per turn, you can also Xyz Summon "Cyber Dragon Infinity" by using "Cyber Dragon Nova" you control as material. (Transfer its materials to this card.) Gains 200 ATK for each material attached to it. Once per turn: You can target 1 face-up Attack Position monster on the field; attach it to this card as material. Once per turn, when a card or effect is activated (Quick Effect): You can detach 1 material from this card; negate the activation, and if you do, destroy it.

 
    
 
    

 LIGHT
LIGHT
Cyber Dragon Nova
- ATK: 
- 2100 
- DEF: 
- 1600 
2 Level 5 Machine monsters Once per turn: You can detach 1 material from this card, then target 1 "Cyber Dragon" in your GY; Special Summon that target. Once per turn (Quick Effect): You can banish 1 "Cyber Dragon" from your hand or face-up from your Monster Zone; this card gains 2100 ATK until the end of this turn. If this card in your possession is sent to your GY by your opponent's card effect: You can Special Summon 1 Machine Fusion Monster from your Extra Deck.
2 Level 5 bodies = 1 omni-negate, has removal, has stat increase
S:P Little Knight and Clockwork Knight (Link)

 
    
 
    

 DARK
DARKS:P Little Knight
- ATK: 
- 1600 
- LINK-2 
Link Arrow:
 Left
 Left
 Right
 Right
2 Effect Monsters If this card is Link Summoned using a Fusion, Synchro, Xyz, or Link Monster as material: You can target 1 card on the field or in either GY; banish it, also your monsters cannot attack directly this turn. When your opponent activates a card or effect (Quick Effect): You can target 2 face-up monsters on the field, including a monster you control; banish both until the End Phase. You can only use each effect of "S:P Little Knight" once per turn.

 
    
 
    

 EARTH
EARTHClockwork Knight
- ATK: 
- 500 
- LINK-1 
Link Arrow:
 Left
 Left
1 non-Link Machine monster with 1000 or less original ATK If this card is Link Summoned: You can send 1 face-up Continuous Spell you control to the GY; add 1 "Clockwork Night" from your Deck to your hand. You can target 1 Machine monster with 1000 or less ATK in your GY; Tribute 1 Machine monster, except this card, and if you do, Special Summon that targeted monster in Defense Position. You can only use each effect of "Clockwork Knight" once per turn.
Clockwork Knight : easy to level up, can send a permanent spell ( Crystron Inclusion ) you are controlling to the grave to search for a Clockwork Night (a floodgay if you want to play evil)
Videos & Combos
Crystron Halqifibrax (Combo)

 
    
 
    

 WATER
WATERCrystron Halqifibrax
- ATK: 
- 1500 
- LINK-2 
Link Arrow:
 Bottom-Left
 Bottom-Left
 Bottom-Right
 Bottom-Right
2 monsters, including a Tuner If this card is Link Summoned: You can Special Summon 1 Level 3 or lower Tuner from your hand or Deck in Defense Position, but it cannot activate its effects this turn. During your opponent's Main Phase or Battle Phase (Quick Effect): You can banish this card you control; Special Summon 1 Tuner Synchro Monster from your Extra Deck. (This is treated as a Synchro Summon.) You can only use each effect of "Crystron Halqifibrax" once per turn.
 
                        









