Painted Sky Horns

Whenever enchanted creature's controller casts their second black spell each turn, end the turn. (Exile all spells and abilities from the stack and active players discard to their maximum hand size. Damage wears off, and "this turn" and "until end of turn"
effects end.)
Auras attached to enchanted creature have totem armor. (If enchanted permanent would be destroyed, instead remove all damage marked on it and destroy this aura.)