Intruder Alarm + Orb of Dreams + Royal Assassin

UB identity

Commander legal

The 3 combo pieces

What must be in place

Royal Assassin does not have summoning sickness.

How to execute it

  1. Whenever a creature enters the battlefield under an opponent's control, it enters tapped due to Orb of Dreams and triggers Intruder Alarm.
  2. Holding priority, activate Royal Assassin by tapping it, destroying the creature.
  3. Resolve the Intruder Alarm trigger, untapping all creatures.
  4. Repeat.

What the combo produces