Hietr, Shadow Demon Queen

+2: Create a 1/4 demon creature token with "If a source would deal damage to Hietr, instead sacrifice this creature and reduce that damage to 0"
0: Create an emblem with "Sacrifice this permanent on your upkeep in three turns, if any source would deal damage to Hietr reduce that damage to 0"
0: Search your deck for a card named "Sul, Shadow Demon Lord" and put it onto the battlefield, then create three 3/3 demon creatures with lifelink"