The Fall of Jezrien

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV).
—I, II Attach target equipment to target creature you control with the greatest power. It gains flying and vigilance.
—III Put an indestructible counter on target creature from step I. It gains defender and its power becomes 1.
—IV Exile target creature from step 1. It deals damage equal to its toughness to each other legendary creature on the battlefield.