Cyber Gymnast

Level 4 EARTH/Warrior Effect Monster
800 ATK / 1800 DEF

Once per turn: You can discard 1 card, then target 1 face-up Attack Position monster your opponent controls; destroy that target.

Rulings – Yugipedia

Printings:

Enemy of Justice: EOJ-EN006 (Common) - 2006-05-17
Dark Revelation Volume 4: DR04-EN186 (Rare) - 2007-11-14
War of the Giants Reinforcements: WGRT-EN016 (Super Rare) - 2014-01-17
War of the Giants: Round 2: BPW2-EN016 (Super Rare) - 2014-01-17
Speed Duel GX: Duel Academy Box: SGX1-ENE08 (Common) - 2022-03-17

Prices:

Cardmarket: 0.04 €
TCGplayer: $ 0.09