Steelswarm Hercules

Level 10 DARK/Fiend Effect
3200 ATK / 0 DEF

Cannot be Special Summoned. Requires 3 "Steelswarm" Tributes to Normal Summon (cannot be Normal Set). Once per turn: You can pay half your Life Points; destroy all other cards on the field.

Rulings – Yugipedia

Printings:

Duel Terminal 6a: DT06-EN032 (Duel Terminal Ultra Parallel Rare) - 2012-02-03
Hidden Arsenal 6: Omega Xyz: HA06-EN017 (Secret Rare) - 2012-07-24

Prices:

Cardmarket: 1.55 €
TCGplayer: $ 0.42