Ashnod's Altar + Court Street Denizen + Hylda of the Icy Crown + Intruder Alarm

WU identity

Commander legal

The 4 combo pieces

What must be in place

An opponent controls a creature.
You have a way to cause a white creature to enter the battlefield under your control.

How to execute it

  1. Cause a white creature to enter the battlefield under your control.
  2. Intruder Alarm and Court Street Denizen trigger.
  3. Resolve the Intruder Alarm trigger, untapping all creatures.
  4. Holding priority, activate Ashnod's Altar by sacrificing the white creature, adding {C}{C}.
  5. Resolve the Court Street Denizen trigger, tapping an opponent's creature.
  6. Hylda of the Icy Crown triggers, causing you to pay {1} to create a 4/4 Elemental creature token.
  7. Repeat from step 2.
  8. Once you have infinite mana, you may forego sacrificing the Elemental tokens.

What the combo produces