Gravewaker + Illuminor Szeras + Intruder Alarm

UB identity

Commander legal

The 3 combo pieces

What must be in place

Illuminor Szeras does not have summoning sickness.
You control another nontoken creature with mana value eight or greater.

How to execute it

  1. Activate Illuminor Szeras by tapping it and sacrificing a nontoken creature with mana value eight or greater, adding at least eight {B}.
  2. Activate Gravewaker by paying {5}{B}{B}, returning the creature with mana value eight or greater from your graveyard to the battlefield.
  3. The creature enters the battlefield, triggering Intruder Alarm, untapping all creatures.
  4. Repeat.

What the combo produces