Akton, Brother of Ravens

At the beginning of your end step, if a nontoken creature was put in your graveyard from the battlefield this turn, you may pay 2 life. If you do, create a 2/1 black Bird creature token with flying.
Pay 2 life, Sacrifice a creature token: Return
Akton from your command zone or from your graveyard to your hand. Activate only if a
nontoken creature was put in your graveyard
from the battlfield this turn.