Mikaeus, the Unhallowed + Blasting Station + Obstinate Gargoyle

Mikaeus, the Unhallowed

Blasting Station

Obstinate Gargoyle

How it works

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

This clever loop harnesses the eternal resilience of Obstinate Gargoyle by bouncing it back and forth between the battlefield and the graveyard, turning a modest gargoyle into an endless engine of destruction. Mikaeus, the Unhallowed provides the crucial passive boost that gives your non-Human creatures undying, ensuring that when the gargoyle perishes with a -1/-1 counter, the +1/+1 counter from undying immediately cancels it out. Meanwhile, Blasting Station acts as both the sacrificial altar and the engine's constant trigger, untapping itself every time the gargoyle re-enters the battlefield so you can fling it at any target infinitely.