Tristan, Wandering Hero

: Escape Destiny {1}{g} | Sorcery - Adventure Mill three cards, then return up to one target permanent card from your graveyard to your hand.   
+1: Each player mills two cards. You gain 1 life for each creature card milled this way.   
-7: Return any number of target creature cards from your graveyard to the battlefield tapped. Sacrifice Tristan, Wandering Hero.