Koll, the Forgemaster + Diamond Lion + Sai of the Shinobi + Fires of Yavimaya

Koll, the Forgemaster

Diamond Lion

Sai of the Shinobi

Fires of Yavimaya

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 ingenious loop transforms a seemingly modest mana rock into an engine of infinite mana and storm count by turning death back into opportunity. Because Fires of Yavimaya grants your team haste, Diamond Lion is able to tap the moment it hits the battlefield, instantly fueling its own sacrifice and generating three mana of any color while discarding your hand. Sai of the Shinobi plays a vital, passive role here: its triggered ability ensures that the equipment automatically attaches itself the moment Diamond Lion enters, turning it into an equipped creature. That single passive attachment is the key that unlocks Koll, the Forgemaster, whose static ability watches for the death of equipped creatures and immediately returns Diamond Lion straight to your hand for another round.