Lotus Ring + Puresteel Paladin + Luminarch Ascension + Fires of Yavimaya

Lotus Ring

Puresteel Paladin

Luminarch Ascension

Fires of Yavimaya

How it works

1. Activate Luminarch Ascension by paying 1, creating a 4/4 Angel creature token.
2. Activate Lotus Ring's equip ability by paying 0 due to Puresteel Paladin, attaching it to the Angel.
3. Activate the Angel by tapping and sacrificing it, adding .
4. Repeat.
5. Once you have infinite mana, you may forego sacrificing the Angels.

This loop transforms a modest investment of mana into an overwhelming aerial army by turning your engine pieces into a self-sustaining cycle. With Puresteel Paladin's metalcraft ability reducing equip costs to zero, Lotus Ring can be repeatedly strapped onto the 4/4 Angel tokens generated by Luminarch Ascension. Because Fires of Yavimaya grants your creatures haste, those newly minted Angels can immediately tap and sacrifice themselves to the Lotus Ring to net a profit of white mana, fueling the Luminarch Ascension once again. Once you have generated infinite mana, you simply stop sacrificing the Angels, leaving your hasty army intact to overwhelm your opponents.