EARTH 4

During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the GY or reveal 1 Rock monster in your hand. When your opponent activates a Trap Card (Quick Effect): You can Tribute this card; negate the activation, and if you do, destroy that card.

WATER 4

During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the Graveyard or reveal 1 Continuous Spell Card in your hand. You can send 1 card from your hand to the Graveyard to destroy 1 Special Summoned monster on the field.

EARTH 4

During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the Graveyard or reveal 1 Beast-Warrior-Type monster in your hand. Once per turn, you can reveal 1 "Iron Core of Koa'ki Meiru" in your hand to Special Summon 1 Level 4 or lower "Koa'ki Meiru" monster from your Deck, except "Koa'ki Meiru Urnight".

EARTH

2 Level 4 monsters All monsters you control gain 800 DEF. You can detach 1 Xyz Material from this card, then target 1 Level 4 EARTH Rock-Type monster in your Graveyard; add that target to your hand. You can only use this effect of "Number 55: Gogogo Goliath" once per turn.

Trap Normal

Reveal 1 "Iron Core of Koa'ki Meiru" in your hand. Destroy all face-down Spell and Trap Cards your opponent controls.

Spell Normal

Add 1 "Spellbook" card from your Deck to your hand, except "Spellbook of Secrets". You can only activate 1 "Spellbook of Secrets" per turn.

DARK

2 Level 4 monsters During either player's turn, when a Level 5 or higher monster would be Special Summoned: You can detach 1 Xyz Material from this card; negate the Special Summon, and if you do, destroy it.

LIGHT

2 Level 8 monsters Once per turn: You can detach 1 Xyz Material from this card, then target 1 face-up monster your opponent controls; monsters you control cannot attack your opponent directly for the rest of this turn, except this card, also take control of the targeted monster until the End Phase, but while this effect is applied, it has its effects negated, its ATK becomes 3000, also its name becomes "Galaxy-Eyes Cipher Dragon".

EARTH

2 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card, then target 1 Beast, Beast-Warrior, or Winged Beast-Type monster you control and 1 other card on the field; destroy them.

Spell Normal

During your Draw Phase, if this card is in your Graveyard, you can add this card to your hand instead of drawing, and/or send 1 "Koa'ki Meiru" monster from your hand to your Graveyard to add this card to your hand.

LIGHT

3 Level 9 monsters You can also Xyz Summon this card by using a Rank 8 "Galaxy-Eyes" Xyz Monster you control as material. (Transfer its materials to this card.) Cannot be used as material for an Xyz Summon. Once per turn: You can detach 1 material from this card, then target 1 card on the field; destroy it. If this Xyz Summoned card you control, is destroyed by battle with an opponent's attacking monster, or destroyed by an opponent's card effect, and sent to your GY: You can target 1 "Galaxy-Eyes Cipher Dragon" in your GY; Special Summon it.

Spell Normal

Send to the GY either 1 Spellcaster monster you control, or 1 other "Spellbook" card from your hand or face-up field, except "Spellbook of Knowledge", and if you do, draw 2 cards. You can only activate 1 "Spellbook of Knowledge" per turn.

Spell Normal

Add 1 "Koa'ki Meiru" card from your Deck to your hand, except "Diamond Core of Koa'ki Meiru". You can banish this card from your Graveyard; for the rest of this turn, "Koa'ki Meiru" monsters you control cannot be destroyed.

WATER 2

If this card is Normal Summoned or flipped face-up: Add 1 "Spellbook" Spell from your Deck to your hand.

LIGHT

3 Level 8 monsters You can also Xyz Summon this card by using a "Galaxy-Eyes" Xyz Monster you control as material, except "Galaxy-Eyes Full Armor Photon Dragon". (Transfer its materials to this card.) Once per turn: You can target up to 2 Equip Cards equipped to this card; attach them to this card as material. Once per turn: You can detach 1 material from this card, then target 1 face-up card your opponent controls; destroy it.

DARK

2 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card, then target 1 monster your opponent controls; banish it until your opponent's next Standby Phase. At the end of the Damage Step, if this card attacked: You can make this card gain 300 ATK, and if you do, increase its Rank by 3.

EARTH 4

During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the GY or reveal 1 Rock monster in your hand. When your opponent activates a Spell Card (Quick Effect): You can Tribute this card; negate the activation, and if you do, destroy that card.

WIND 1

During damage calculation, if your opponent's monster attacks directly (Quick Effect): You can discard this card; you take no battle damage from that battle. During damage calculation, if your opponent's monster attacks directly (Quick Effect): You can banish this card from your Graveyard; you take no battle damage from that battle.

WIND 8

This card cannot be Normal Summoned or Set. This card can only be Special Summoned by removing from play 1 "Iron Core of Koa'ki Meiru" from your hand. During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" or 1 "Koa'ki Meiru" monster from your hand to the Graveyard. Once per turn, during your Main Phase, you can select and destroy 1 card your opponent controls.

LIGHT

2 Level 8 monsters Once per turn: You can detach 1 Xyz Material from this card, then target 1 face-up monster your opponent controls; monsters you control cannot attack your opponent directly for the rest of this turn, except this card, also take control of the targeted monster until the End Phase, but while this effect is applied, it has its effects negated, its ATK becomes 3000, also its name becomes "Galaxy-Eyes Cipher Dragon".

LIGHT

3 Level 8 monsters You can also Xyz Summon this card by using a "Galaxy-Eyes" Xyz Monster you control as material, except "Galaxy-Eyes Full Armor Photon Dragon". (Transfer its materials to this card.) Once per turn: You can target up to 2 Equip Cards equipped to this card; attach them to this card as material. Once per turn: You can detach 1 material from this card, then target 1 face-up card your opponent controls; destroy it.

Spell Normal

Send to the GY either 1 Spellcaster monster you control, or 1 other "Spellbook" card from your hand or face-up field, except "Spellbook of Knowledge", and if you do, draw 2 cards. You can only activate 1 "Spellbook of Knowledge" per turn.