Ally of Justice Reverse Break

Level 4 DARK/Machine Effect Monster
1200 ATK / 1200 DEF

If a face-up LIGHT monster is on the field, destroy this card. If this card attacks a face-down Defense Position monster, destroy that monster immediately with this card's effect without flipping it face-up or applying damage calculation.

Rulings – Yugipedia

Printings:

Duel Terminal 2: DT02-EN080 (Duel Terminal Rare Parallel Rare) - 2010-05-25
Hidden Arsenal 2: HA02-EN050 (Super Rare) - 2010-07-15
Hidden Arsenal: Chapter 1: HAC1-EN085 (Common) - 2022-02-24
Hidden Arsenal: Chapter 1: HAC1-EN085 (Duel Terminal Normal Parallel Rare) - 2022-02-24

Prices:

Cardmarket: 0.06 €
TCGplayer: $ 0.06