Koll, the Forgemaster + Demonmail Hauberk + Puresteel Paladin + Myr Moonvessel

Koll, the Forgemaster

Demonmail Hauberk

Puresteel Paladin

Myr Moonvessel

How it works

1. Activate an equipment except Demonmail Hauberk's equip ability by paying 0, attaching it to Myr Moonvessel.
2. Activate Demonmail Hauberk by sacrificing Myr Moonvessel, targeting Koll.
3. When Myr Moonvessel dies, it and Koll trigger.
4. Resolve the Myr Moonvessel trigger, adding C.
5. Resolve the Koll trigger, returning it from your graveyard to your hand.
6. Resolve the Demonmail Hauberk ability, attaching it to Koll.
7. Cast Myr Moonvessel by paying its mana cost.
8. Repeat.