Hogaak, Arisen Necropolis + Altar of Dementia + Magus of the Bridge + The Skullspore Nexus

Hogaak, Arisen Necropolis

Altar of Dementia

Magus of the Bridge

The Skullspore Nexus

How it works

1. Activate Altar of Dementia by sacrificing Hogaak.
2. When Hogaak dies, Magus of the Bridge and The Skullspore Nexus trigger, creating two creature tokens.
3. Resolve the Altar of Dementia ability, causing you to mill eight cards.
4. Cast Hogaak from your graveyard by exiling five cards from your graveyard and tapping two black and/or green creatures you control.
5. Repeat.

This loop relies on Hogaak, Arisen Necropolis being able to repeatedly cast itself straight from your graveyard using its native delve and convoke abilities, fueled by the resources you churn through. You sacrifice Hogaak to Altar of Dementia to mill your opponent for eight, which simultaneously triggers Magus of the Bridge to yield a Zombie and The Skullspore Nexus to spawn a massive Fungus Dinosaur with power equal to Hogaak's. Those newly created tokens—alongside cards exiled from your graveyard to delve—pay entirely for Hogaak's convoke and casting costs, allowing you to loop the process endlessly.