Intruder Alarm + Weaver of Harmony

GU identity

Commander legal

The 2 combo pieces

What must be in place

You have a creature card in hand.
Creatures you control can tap to produce at least {1}{G}.
Weaver of Harmony does not have summoning sickness.
You are able to cast the creature card.

How to execute it

  1. Cast a creature card from your hand by paying its mana cost.
  2. The creature enters the battlefield, triggering Intruder Alarm.
  3. Holding priority, activate all mana-producing creatures you control by tapping them, adding at least {1}{G}.
  4. Activate Weaver of Harmony by paying {G} and tapping it, copying Intruder Alarm's trigger.
  5. Resolve the copy of Intruder Alarm's trigger, untapping all creatures.
  6. Repeat from step 3.

What the combo produces