Dieftharmen Infection

Enchant Creature or Planeswalker
As long as it's enchanted permanent's controller's
turn, it acts as though it's enchanted permanent's
controller's opponent's turn, and as long as it's
enchanted permanent's controller's opponent's
turn, it acts as though it's enchanted permanent's
controller's turn. (It carries out steps and phases
directly after the opponent carries them out.)