Wailer Humperdinck [GEM048] (GEM Pack 2) Rainbow Foil SWSH177 After resolving a card effect

After resolving a card effect that targets this face-up card

Once per turn: You can detach 1 Xyz Material from this card to target 1 monster on the field or in either player's Graveyard

It is highly synergistic with ST-12

Set: Jungle 1st Edition Type: Colorless Rarity: Rare Retreat cost: Colorless

) You may trash 1 card from your hand : If you have 1 or less Life cards

Wailer Humperdinck [GEM048] (GEM Pack 2) Rainbow Foil SWSH177 After resolving a card effectSet: GEM Pack 2 Finish: Rainbow Foil Type: Action Subtype: Ally Rarity: Promo Class: Necromancer Pirate Cost: 6 Power: 11 Life: 7 Action [6 Resources], TAP: Attack Watery Grave (When this is put into your graveyard from the arena, turn it face down.)