Brilliant Fusion
Gem-Knight New tool. I hope this will be printed ASAP.
Fusion Summon 1 "Gem-Knight" Fusion Monster from your Extra Deck, using monsters from your Deck as Fusion Materials, but its ATK and DEF become 0. Once per turn: You can send 1 Spell Card from your hand to the Graveyard, and if you do, that monster's ATK and DEF become its original ATK and DEF, until your next Standby Phase. When this card leaves the field, destroy that monster. When that monster leaves the field, destroy this card.
Gem-Knight New tool. I hope this will be printed ASAP.