Scroll of Isildur

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) [I] Gain control of up to one target artifact for as long as you control Scroll of Isildur. The Ring tempts you. [II] Tap up to two target creatures. Put a stun counter on each of them. [III] Draw a card for each tapped creature target opponent controls.