Rare Metalmorph

Continuous Trap

Activate this card by targeting 1 Machine-Type monster on the field; it gains 500 ATK. Once, negate a Spell effect that targets that monster. When that monster leaves the field, destroy this card.

Rulings – Yugipedia

Printings:

Rise of Destiny: RDS-EN052 (Rare) - 2004-11-20
Rise of Destiny: RDS-EN052 (Ultimate Rare) - 2004-11-20
Dark Revelation Volume 3: DR3-EN112 (Rare) - 2006-11-25
Structure Deck: Machine Re-Volt: SD10-EN035 (Common) - 2007-01-17
Machina Mayhem Structure Deck: SDMM-EN034 (Common) - 2010-02-19
Battle Pack 3: Monster League: BP03-EN200 (Common) - 2014-07-31
Battle Pack 3: Monster League: BP03-EN200 (Shatterfoil Rare) - 2014-07-31
Geargia Rampage Structure Deck: SDGR-EN032 (Common) - 2014-10-16
Speed Duel: Battle City Box: SBCB-EN080 (Common) - 2020-11-26
OTS Tournament Pack 27: OP27-EN024 (Common) - 2025-02-27

Prices:

Cardmarket: 0.04 €
TCGplayer: $ 0.09