Koll, the Forgemaster + Demonmail Hauberk + Shuko + Greedy Freebooter

Koll, the Forgemaster

Demonmail Hauberk

Shuko

Greedy Freebooter

How it works

1. Activate Shuko's equip ability by paying 0, attaching it to Greedy Freebooter.
2. Activate Demonmail Hauberk by sacrificing Greedy Freebooter, targeting Koll.
3. When Greedy Freebooter dies, it and Koll trigger.
4. Resolve the Greedy Freebooter trigger, creating a Treasure token.
5. Activate the Treasure by tapping and sacrificing it, adding .
6. Resolve the Koll trigger, returning Greedy Freebooter from your graveyard to your hand.
7. Resolve the Demonmail Hauberk ability, attaching it to Koll.
8. Cast Greedy Freebooter by paying its mana cost.
9. Repeat.