Spell
ContinuousWeapon Change
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2575
Once during each of your Standby Phases: You can pay 700 Life Points, then target 1 Warrior or Machine-Type monster you control; switch the current ATK and DEF of that target until the end of your opponent's next turn.
Weapon Change — Power Evaluation
Final Score: 36 ± 7 · Confidence: Medium
- Intrinsic: 35 · Deck: 37 · Meta: provisional
- Primary role: Utility
Why it scores here
Weapon Change's value comes entirely from a repeatable ATK/DEF swap, not from stats — as a Spell it has no ATK/DEF to score on, and its power does not rise with the numbers on its targets. It converts high-DEF Warrior/Machine walls such as Stone Statue of the Aztecs, Big Shield Gardna, and Destiny HERO - Defender into attackers, but it converts only one target, only during your own Standby Phase, and costs 700 LP each time, so it never builds a board or disrupts the opponent. It appears in just 4 recorded decks and 0 combos, which places its practical value in niche DEF-tech shells rather than in a competitive engine.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 35 | Continuous Spell with no observed tutor or starter route, run as a 2-3-of in only 4 decks (avg 2.75 copies), so it must be drawn naturally (observed). |
| Combo & Conversion | 27 | Combos evidence shows 0 appearances, 0 as_starter, 0 as_material, and 0 as_payoff; it swaps one target's stats and builds no board (observed). |
| Resource Economy | 25 | -700 LP per activation with no card advantage, no search, and no GY/banish refuel — a strict cost for a single stat swap (verified). |
| Effect & Interaction | 15 | The effect only changes your own monster's ATK/DEF and provides no negation, removal, or disruption of the opponent (verified). |
| Material Utility | 10 | As a Continuous Spell it has no body, Level, Attribute, or Tuner value and cannot be used as material for a Summon (verified). |
| Resilience & Flexibility | 38 | It stays on the field and repeats every Standby Phase, but any Spell/Trap removal turns it off and it only functions while you control a Warrior or Machine (inferred). |
| Deck-Building Efficiency | 42 | No garnet and no lock, but it demands a dedicated Warrior/Machine DEF shell and 700 LP per swap, so it only earns slots in specific builds (inferred). |
Calculation
Weight profile: Utility / no clear role (default). Intrinsic ≈ 35, Deck ≈ 37, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Repeatable ATK/DEF swap every Standby Phase while it stays on the field
- Turns high-DEF Warrior/Machine walls (Stone Statue of the Aztecs, Big Shield Gardna, Destiny HERO - Defender) into attackers
- Fits alongside observed defense tech such as Wall of Disruption, D2 Shield, Shrink, Mirror Wall, and Fairy Box
- Continuous Spell with no cost to place and no self-lock, so it is not a garnet
Weaknesses
- 700 LP cost on every single activation, which adds up over a duel
- Only targets a Warrior or Machine-Type monster you control, limiting other decks
- Activates only during your own Standby Phase, making it very slow
- Provides no disruption, negation, or removal against the opponent
- One Spell/Trap removal ends the effect, and removing the target blanks the activation
- Zero recorded combo appearances and only 4 recorded decks
Counters / choke points
- Mystical Space Typhoon
- Cosmic Cyclone
- Twin Twisters
- Harpie's Feather Duster
- Lightning Storm
- Removal aimed at the targeted Warrior or Machine monster
Best use
Niche repeatable ATK/DEF-swap utility for DEF-focused Warrior or Machine decks. Decks: DEF-based Warrior/Machine shells (Stone Statue of the Aztecs, Big Shield Gardna, Destiny HERO - Defender), Speedroid, Destiny HERO, Guardian. Suggested copies: 2.
Evidence & gaps
- Verified: Card text: Once during each of your Standby Phases, you can pay 700 LP to switch the current ATK and DEF of 1 Warrior or Machine-Type monster you control until the end of your opponent's next turn.; It is a Continuous Spell Card with no ATK/DEF and no archetype membership.
- Observed: 4 recorded decks run it, all in the main deck, averaging 2.75 copies (distribution 1x2 and 3x3).; Decks span 4 different archetypes (Speedroid, Destiny HERO, Greed, Guardian) at 25% each.; Top partners co-deck at 100% (Wall of Disruption) and 75% (Stone Statue of the Aztecs, Big Shield Gardna, Destiny HERO - Defender, D2 Shield, Shrink, Mirror Wall, Fairy Box, Canyon, Pot of Desires, Morphing Jar, Cardcar D, Battle Mania, Cross Counter, Stronghold Guardian).; Combos evidence records 0 appearances, 0 as_starter, 0 as_searched, 0 as_material, 0 as_payoff, and 0 end-board inclusions.; 0 guide mentions and no usage_statistics rows available.
- Inferred: Its practical value is limited to DEF-wall decks that can attack with Stone Statue of the Aztecs, Big Shield Gardna, or Destiny HERO - Defender.; Because it triggers only during the controller's Standby Phase and costs 700 LP per use, it is a slow, LP-taxing effect rather than a combo starter.; Any Spell/Trap removal or removal of the targeted monster blanks the effect for that turn.
- Data gaps: no combos supplied — combo conversion is text-only inference no guides supplied no banlist token — assumed 3 copies (unlimited) no usage statistics (StatisticsCard) — archetype inclusion % inferred from deck sample only deck sample is very small (4 decks)






