Koll, the Forgemaster + Diamond Lion + Concordant Crossroads + Ronin Warclub

Koll, the Forgemaster

Diamond Lion

Concordant Crossroads

Ronin Warclub

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 turns a modest artifact creature into a self-sustaining mana engine by leaning on Koll, the Forgemaster's ability to return equipped creatures to your hand upon death. As Diamond Lion hits the battlefield, Concordant Crossroads ensures it doesn't have to wait around to be tapped, while Ronin Warclub automatically swoops in to equip it the moment it arrives. Sacrificing the Lion for a burst of three mana triggers Koll's retrieval, putting the creature right back in your hand so you can recast it and repeat the cycle endlessly.