Gem-Knight Prismaura

[ Thunder / Fusion / Effect ] 1 "Gem-Knight" monster + 1 Thunder-Type monster Must first be Fusion Summoned. Once per turn: You can send 1 "Gem-Knight" card from your hand to the Graveyard to target 1 face-up card on the field; destroy that target. ATK/ 2450 DEF/ 1400