Champions of Kamigawa

Reweave

Target permanent's controller sacrifices it. That player reveals cards from the top of his or her library until he or she reveals a card that shares a card type with the sacrificed permanent. The player puts that card into play, then shuffles his or her library.
Splice onto Arcane {2}{U}{U}

Target permanent's controller sacrifices it. If the player does, they reveal cards from the top of their library until they reveal a permanent card that shares a card type with the sacrificed permanent, put that card onto the battlefield, then shuffle.
Splice onto Arcane {2}{U}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)