Mikaeus, the Unhallowed + Kitchen Finks + Altar of Dementia

Mikaeus, the Unhallowed

Kitchen Finks

Altar of Dementia

How it works

1. Activate Altar of Dementia by sacrificing Kitchen Finks.
2. When Kitchen Finks dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Kitchen Finks enters, it triggers, causing you to gain 2 life.
4. Resolve the Altar of Dementia ability.
5. Activate Altar of Dementia by sacrificing Kitchen Finks.
6. When Kitchen Finks dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
7. When Kitchen Finks enters, it triggers, causing you to gain 2 life.
8. Resolve the Altar of Dementia ability.
9. Repeat.