Reign of Hellfire, Spirit of Fire

[AUTO]:If you have a unit with "Hao" in its card name, this ability's cost is reduced by [Soul-Blast]2. When this unit is placed on (RC), [COST][Soul-Blast]2], and until end of turn, this unit gets [Critical] +1, and for the battle this unit attacked, when your opponent would call cards from their hand to (GC), they must call two or more at the same time.