Errant, Street Artist + Intruder Alarm + Volo, Guide to Monsters

GU identity

Commander legal

The 3 combo pieces

What must be in place

Any creature in hand that does not share a creature type with a creature you control or in your graveyard.
You control creatures that can tap to add at least {1}{U}.
Enough mana available to cast the creature spell.

How to execute it

  1. Cast a creature spell by paying its mana cost.
  2. Volo triggers, copying that spell.
  3. Tap creatures to add at least {1}{U}.
  4. Pay {1}{U} and tap Errant to activate her, copying the copied creature spell.
  5. Let one copy of the creature spell resolve.
  6. Intruder Alarm triggers, untapping all creatures.
  7. Repeat from step 3.

What the combo produces