MTG >Combos >Hell's Caretaker +Pestermite +Corridor Monitor +

At your Upkeep and with either of the two creatures in your graveyard: Activate Hell's Caretaker's ability, sacrifice Pestermite and return Corridor Monitor from your graveyard to play. Corridor Monitor's ability will trigger, untap Hell's Caretaker Activate Hell's Caretaker's ability and sacrifice Coriddor Monitor to return Pestermite to play Pestermite's ability will trigger, untap Hell's Caretaker Repeat the process for infinite ETB.