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

I — This Saga deals 1 damage to each opponent and each planeswalker they control.

II — When you next cast a creature spell this turn, that creature enters with an additional +1/+1 counter on it.

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

Haste

If a creature dealt damage this turn by a source you controlled would die, exile it instead.