msem-instigator

Deception {1}{U} ({1}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Marilye deals combat damage to a player, you may search your library for an artifact card with mana value less than or equal to the amount of damage that player has been dealt this turn, put it onto the battlefield, then shuffle.