Koll, the Forgemaster + Demonmail Hauberk + Crimson Kobolds + Memnite

Koll, the Forgemaster

Demonmail Hauberk

Crimson Kobolds

Memnite

How it works

1. Activate Demonmail Hauberk's equip ability by sacrificing Crimson Kobolds, targeting Memnite.
2. When Crimson Kobolds dies, Koll triggers, returning Crimson Kobolds from your graveyard to your hand.
3. Resolve the Demonmail Hauberk ability, attaching it to Memnite.
4. Cast Crimson Kobolds by paying 0.
5. Activate Demonmail Hauberk's equip ability by sacrificing Memnite, targeting Crimson Kobolds.
6. When Memnite dies, Koll triggers, returning Memnite from your graveyard to your hand.
7. Resolve the Demonmail Hauberk ability, attaching it to Crimson Kobolds.
8. Cast Memnite by paying 0.
9. Repeat.

This elegant loop turns Demonmail Hauberk into a zero-cost sacrifice engine by using Koll, the Forgemaster's static triggered ability to perpetually bounce your fallen combatants back to your hand. Because both Crimson Kobolds and Memnite can be cast for free with no mana investment, you can endlessly alternate sacrificing them to the Hauberk's equip cost. Each cycle triggers Koll's return effect the moment the sacrificed creature dies while equipped, fueling infinite sacrifices, storm count, and entry triggers for any other cards you might need to close out the game.