Showdown of the Skalds (Kaldheim)

Enchantment Ñ Saga - (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I Ñ Exile the top four cards of your library. Until the end of your next turn, you may play those cards.
II, III Ñ Whenever you cast a spell this turn, put a +1/+1 counter on target creature you control.