Kiora Bests the Sea God

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) [I] Create an 8/8 blue Kraken creature token with hexproof. [II] Tap all nonland permanents target opponent controls. They don't untap during their controller's next untap step. [III] Gain control of target permanent an opponent controls. Untap it.