Mikaeus, the Unhallowed + Glen Elendra Archmage + Bartolomé del Presidio

Mikaeus, the Unhallowed

Glen Elendra Archmage

Bartolomé del Presidio

How it works

1. Activate Bartolomé del Presidio by sacrificing Glen Elendra Archmage.
2. When Glen Elendra Archmage dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Resolve the Bartolomé del Presidio ability.
4. Activate Bartolomé del Presidio by sacrificing Glen Elendra Archmage.
5. When Glen Elendra Archmage dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
6. Resolve the Bartolomé del Presidio ability.
7. Repeat.