Battle of Frost and Fire (KHM)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Battle of Frost and Fire deals 4 damage to each non-Giant creature and each planeswalker. II — Scry 3. III — Whenever you cast a spell with converted mana cost 5 or greater this turn, draw two cards, then discard a card.