Mikaeus, the Unhallowed + Defiant Greatmaw + Shilgengar, Sire of Famine

Mikaeus, the Unhallowed

Defiant Greatmaw

Shilgengar, Sire of Famine

How it works

1. Activate Shilgengar by sacrificing Defiant Greatmaw.
2. When Defiant Greatmaw dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3. When Defiant Greatmaw enters the battlefield, its first ability triggers, putting two -1/-1 counters on it.
4. Defiant Greatmaw's second ability triggers, removing a -1/-1 counter from another creature you control.
5. Resolve the Shilgengar ability from step 1
6. Repeat.