Mikaeus, the Unhallowed + Blasting Station + Glen Elendra Archmage

Mikaeus, the Unhallowed

Blasting Station

Glen Elendra Archmage

How it works

1. Activate Blasting Station by tapping it and 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. When Glen Elendra Archmage enters, Blasting Station triggers, untapping Blasting Station.
4. Resolve the Blasting Station ability from step 1.
5. Activate Blasting Station by tapping it and sacrificing Glen Elendra Archmage.
6. When Glen Elendra Archmage dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
7. When Glen Elendra Archmage enters, Blasting Station triggers, untapping Blasting Station.
8. Resolve the Blasting Station ability from step 5.
9. Repeat.