Dockside Extortionist + Hellkite Charger + Helm of the Host

Dockside Extortionist

Hellkite Charger

Helm of the Host

How it works

1. At the beginning of your combat phase, Helm of the Host triggers, creating a token copy of Dockside Extortionist with haste.
2. When the token Dockside Extortionist enters the battlefield, it triggers, creating at least seven Treasure artifact tokens.
3. Declare Hellkite Charger as an attacker, triggering its ability.
4. Holding priority, activate seven Treasures by tapping and sacrificing them, adding 5.
5. Resolve the Hellkite Charger trigger, causing you to pay 5 to untap all attacking creatures you control and get an additional combat phase after this one.
6. Repeat each combat phase.
7. If opponents control at least eight artifacts and/or enchantments, this combo nets infinite Treasure tokens and colored mana.

This explosive loop turns your opponents' own board state against them by combining Hellkite Charger and Helm of the Host to generate an endless series of combat steps. Equipping the Helm to a creature isn't even necessary to get the engine running, because Helm of the Host automatically churns out a fresh copy of Dockside Extortionist at the start of every combat phase. As long as your opponents control enough artifacts and enchantments, the newly spawned Dockside Extortionist produces more than enough Treasure tokens to pay for Hellkite Charger's extra combat trigger, letting your entire army attack infinitely and flooding you with limitless resources.