Ri'ec the Godslayer

+1: Until end of turn, Ri'ec the Godslayer becomes a legendary 2/2 blue Human Wizard with indestructible that can't be blocked.
-X: Ri'ec the Godslayer deals X damage to any target and you gain half X life, rounded down.
-8: For each player, search that player's graveyard for a nonland card and exile it. You may cast those cards without paying their mana costs.