Number 51: Finisher the Strong Arm (DLCS-EN120) [Dragons of Legend: The Complete Series]

3 Level 3 monsters
<br>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.