The Conundrum of Bowls

(As this Saga enters and after your draw step add a lore counter. Sacrifice after III.) I — Seek a card with mana value less than the number of cards in your hand. II — Seek a card with mana value greater than the number of cards in your hand. III — Count the number of cards in your hand. You may cast a spell with mana value equal to that number from your hand without paying its mana cost.