(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 the aesir escape valhalla and the exiled card to their owner's hand.