Koll, the Forgemaster + Diamond Lion + Ronin Warclub + Tannuk, Steadfast Second

Koll, the Forgemaster

Diamond Lion

Ronin Warclub

Tannuk, Steadfast Second

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 looping engine turns a humble mana-producer into a self-sustaining mana generator by leveraging the synergy between Koll, the Forgemaster and Ronin Warclub. As soon as Diamond Lion enters the battlefield, the Warclub automatically equips to it, ensuring it is properly equipped to satisfy Koll's resurrection clause when it dies. Tapping Diamond Lion to sacrifice itself yields three mana while triggering Koll to bounce the Lion straight back to your hand, allowing you to recast it and repeat the cycle indefinitely. Meanwhile, Tannuk, Steadfast Second sits in the background, though its haste and warp abilities aren't strictly necessary to keep this particular loop running.