Lagiacrus

Water Blight (When this creature is blocked, flip a coin, if you win the flip, defending creature(s) tap and don't untap during their controller's next untap step.)
Thunder Blight (When this creature is blocked, flip a coin, if you win the flip, defending creature(s) tap and don't untap during their controller's next 3 untap steps.)
(If a creature has 2 or more blight abilities, their controller may choose 1.)