Mortuary + Altar of Dementia + Crimson Kobolds + Gwenom, Remorseless

Mortuary

Altar of Dementia

Crimson Kobolds

Gwenom, Remorseless

How it works

1. Activate Altar of Dementia by sacrificing Crimson Kobolds
2. When Crimson Kobolds dies, Mortuary triggers, putting Crimson Kobolds from your graveyard onto the top of your library.
3. Resolve the Altar of Dementia ability.
4. Cast Crimson Kobolds from the top of your library by paying 0 life.
5. Repeat.

This loop turns a free sacrifice outlet into an infinite milling machine by exploiting a clever interaction with zero-mana creatures. When you use Altar of Dementia to sacrifice Crimson Kobolds, Mortuary immediately intercepts the creature as it hits the graveyard, safely tucking it right back onto the top of your library. From there, Gwenom, Remorseless steps in to bypass normal casting restrictions, letting you replay the Kobolds directly from the library while paying zero life thanks to its negligible mana value. Repeat this process as many times as you desire to mill your opponents out completely while racking up an unbounded storm count.