Sassy's Saga

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I: Create a 0/1 Goat creature token, it gains haste. Sacrifice it at the start of your next upkeep.
II: Create a 2/2 Lizard creature token, it gains haste. Sacrifice it at the start of your next upkeep.
III: Create a 3/3 Cat creature token, it gains haste. Sacrifice it at the start of your next upkeep.
IV: Search your library for a Legendary creature
and put it onto the battlefield.