ACR-39 The Aesir Escape Valhalla

(As this Saga enters and after your draw step, add a lore counter.)
I - Exile a permanent card from your graveyard. You gain life equal to its mana value.
II - Put a number of +1/+1 counters on target creature you control equal to the mana value of the exiled card.
III - Return this Saga and the exiled card to their owner's hand.