Ashnod's Altar + Enduring Renewal + Intruder Alarm

Mana needed: {2} (at most)

WU identity

Commander legal

The 3 combo pieces

What must be in place

You control a nontoken creature that can be cast using {C}{C}.
You have at least one creature card in hand.
Creatures you control can tap to produce enough mana to cast the creature card minus {C}{C}.

How to execute it

  1. Activate Ashnod's Altar by sacrificing the creature, adding {C}{C}.
  2. When the creature dies, Enduring Renewal triggers, returning the creature from your graveyard to your hand.
  3. Cast the creature by paying its mana cost.
  4. Repeat.
  5. If the creature can be cast using {C} or less, this combo nets infinite colorless mana.
  6. Activate all mana-producing creatures you control by tapping them, adding at least {1}.
  7. Cast the creature card by paying its mana cost.
  8. When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  9. Activate Ashnod's Altar by sacrificing the creature, adding {C}{C}.
  10. When the creature dies, Enduring Renewal triggers, returning the creature to your hand from your graveyard.
  11. Repeat.

What the combo produces