Mortuary + Blasting Station + Phyrexian Walker + Gwenom, Remorseless

Mortuary

Blasting Station

Phyrexian Walker

Gwenom, Remorseless

How it works

1. Activate Blasting Station by tapping it and sacrificing Phyrexian Walker
2. When Phyrexian Walker dies, Mortuary triggers, putting Phyrexian Walker from your graveyard onto the top of your library.
3. Resolve the Blasting Station ability.
4. Cast Phyrexian Walker from the top of your library by paying 0 life.
5. When Phyrexian Walker enters, Blasting Station triggers, untapping Blasting Station.
6. Repeat.

This wicked loop turns the lowly Phyrexian Walker into endless ammunition by leveraging Mortuary to constantly recycle it straight from your graveyard back to the top of your library every time it meets its doom. From there, Blasting Station does double duty: its sacrifice outlet lets you trigger the death and graveyard loops while its second ability untaps itself whenever a creature enters the battlefield, making the whole engine self-sustaining. The only thing missing to bridge the top of your library back to the battlefield for free is Gwenom, Remorseless, whose attack trigger lets you cast creatures from the top of your library by paying life instead of mana. Since Phyrexian Walker costs zero to cast, you pay zero life to recast it—bypassing Gwenom's life-payment restriction entirely—to repeatedly untap the station, blast your opponents to ash, and rack up an infinite storm count.