Asoc, Cipher of the Void

Deathtouch, Ward—Pay 3 life

Whenever a player casts their second spell each turn, that player mills three cards. For each nonland card milled this way, create a tapped Treasure token.

{u}{b}, Sacrifice a Treasure: Return target creature card from a graveyard to the battlefield under your control. It’s a Phyrexian in addition to its other types.

"I am the shadow in your circuits, the whisper in your code — your thoughts are mine to rewrite."