Lotus Ring + Puresteel Paladin + Luminarch Ascension + Tannuk, Steadfast Second

Lotus Ring

Puresteel Paladin

Luminarch Ascension

Tannuk, Steadfast Second

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 centers around Luminarch Ascension to generate 4/4 white Angel creature tokens, which immediately gain haste thanks to Tannuk, Steadfast Second. With Puresteel Paladin on the board providing metalcraft, you can equip Lotus Ring to the newly minted Angel for free. From there, you tap and sacrifice the equipped Angel using Lotus Ring's own ability to net three mana—more than enough to recast the cycle and fund the next activation of Luminarch Ascension.