Halo Fountain + Intruder Alarm + March of the Machines

WU identity

Commander legal

The 3 combo pieces

What must be in place

Halo Fountain does not have summoning sickness.
You control a creature that can tap to produce at least {W}.

How to execute it

  1. Activate a creature you control by tapping it, adding {W}.
  2. Activate Halo Fountain's first ability by paying {W}, tapping and untapping it, creating a 1/1 Citizen creature token.
  3. When the Citizen enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  4. Repeat.

What the combo produces