Number 51: Finisher the Strong Arm

Level 3 EARTH/Rock Xyz Effect
2600 ATK / 0 DEF

3 Level 3 monsters
Cannot be destroyed by battle. At the end of the Damage Step, if this card battled: You can detach 1 Xyz Material from this card; place 1 Counter on this card (max. 3). At the end of the Battle Phase, if this card battled, and has 3 of these Counters: You can destroy all cards your opponent controls.

Rulings – Yugipedia

Printings:

Dragons of Legend: Unleashed: DRL3-EN024 (Secret Rare) - 2016-08-18
Dragons of Legend: The Complete Series: DLCS-EN120 (Common) - 2020-09-10

Prices:

Cardmarket: 0.40 €
TCGplayer: $ 0.29