Gravebane Zombie + Rooftop Storm + Altar of Dementia + Future Sight

Gravebane Zombie

Rooftop Storm

Altar of Dementia

Future Sight

How it works

1. Activate Altar of Dementia by sacrificing Gravebane Zombie.
2. Gravebone Zombie is put on top of your library instead of into your graveyard.
3. Resolve the Altar of Dementia ability, causing target opponent to mill cards equal to Gravebane Zombie's power.
4. Cast Gravebane Zombie from the top of your library by paying 0.
5. Repeat.

This clever loop harnesses Altar of Dementia to repeatedly mill your opponents by feeding it a very specific undead fuel source. The secret lies in Gravebane Zombie's replacement effect, which neatly bypasses the graveyard entirely to slide the creature straight back onto your library whenever it dies. With Future Sight letting you play cards directly from the top of your library, and Rooftop Storm completely eliminating the mana cost to cast your Zombie spells, the top of your deck becomes a self-sustaining engine. You simply sacrifice the Zombie to the Altar, watch it return to your library's peak, and cast it again for free to repeat the cycle indefinitely.