Koll, the Forgemaster + Diamond Lion + Ronin Warclub + Fires of Yavimaya

Koll, the Forgemaster

Diamond Lion

Ronin Warclub

Fires of Yavimaya

How it works

1. Cast Diamond Lion by paying 2.
2. When Diamond Lion enters, Ronin Warclub triggers, attaching itself to Diamond Lion.
3. Activate Diamond Lion by tapping it, sacrificing it and discarding your hand, adding three mana of any color.
4. When Diamond Lion dies, Koll triggers, returning Diamond Lion from your graveyard to your hand.
5. Repeat.

This clever loop hinges on Koll, the Forgemaster's ability to bounce equipped creatures straight back to your hand when they die, paired with Fires of Yavimaya to instantly grant haste so your threats can re-enter immediately. As Diamond Lion hits the battlefield, Ronin Warclub automatically attaches itself via its own triggered ability, satisfying Koll's requirement that the dying creature be equipped. Tapping and sacrificing Diamond Lion generates three mana of any color at the cost of your hand, while simultaneously triggering Koll to return the Lion to your hand so you can recast it.