Living Breakthrough

Flying

Whenever you cast a spell, your opponents can't cast spells with the same mana value as that spell until your next turn.

(As this Saga enters and after your draw step, add a lore counter.)

I — Return up to one target creature or planeswalker to its owner's hand.

II — Return an artifact card from your graveyard to your hand. If you can't, draw a card.

III — Exile this Saga, then return it to the battlefield transformed under your control.