Koll, the Forgemaster + Diamond Lion + Sai of the Shinobi + Kratos, God of War

Koll, the Forgemaster

Diamond Lion

Sai of the Shinobi

Kratos, God of War

How it works

1. Cast Diamond Lion by paying 2.
2. When Diamond Lion enters, Sai of the Shinobi 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 transforms a humble feline into an infinite mana engine by exploiting Koll, the Forgemaster's ability to recycle fallen equipped creatures back to your hand. With Sai of the Shinobi automatically outfitting Diamond Lion the moment it hits the battlefield, the Lion counts as being equipped when it bites the dust, satisfying Koll's prerequisite. You can then tap and sacrifice the Diamond Lion to generate three mana, let Koll return it to your hand, and simply recast it using a fraction of the proceeds—all while Kratos, God of War grants haste to keep your board dynamic.