Evilswarm Exciton Knight is a Ultra Rare XYZ Monster card from Yu-Gi-Oh! (Battles of Legend: Chapter 1, BLC1). Current market price: $0.15.
Ultra Rare
Battles of Legend: Chapter 1 (BLC1)
Card Text
2 Level 4 monsters
Once per chain, during your Main Phase or your opponent's Battle Phase, if your opponent has more total cards in their hand and field than you do (Quick Effect): You can detach 1 material from this card; destroy all other cards on the field, also your opponent takes no further damage this turn.
