Adarkar Valkyrie + Ashnod's Altar + Intruder Alarm

WU identity

Commander legal

The 3 combo pieces

What must be in place

Adarkar Valkyrie does not have summoning sickness.
You control at least one additional nontoken creature.

How to execute it

  1. Activate Adarkar Valkyrie by tapping it, targeting another nontoken creature you control.
  2. Activate Ashnod's Altar by sacrificing the creature targeted in step 1, adding {C}{C}.
  3. When the creature dies, Adarkar Valkyrie triggers, returning the sacrificed creature from your graveyard to the battlefield.
  4. When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  5. Repeat.

What the combo produces