Abandoned Sarcophagus + Infinite Reflection + Hollow One + Wild Cantor

Abandoned Sarcophagus

Infinite Reflection

Hollow One

Wild Cantor

How it works

1. Cast Hollow One either from your hand or from your graveyard by paying at most 1, causing it to enter the battlefield as a copy of Wild Cantor due to Infinite Reflection.
2. Activate Hollow One by sacrificing it, adding one mana of any color.
3. If you cast Hollow One from your graveyard, Hollow One is not exiled by Abandoned Sarcophagus due to Infinite Reflection removing Hollow One's cycling ability.
4. Repeat.
5. If you have discarded three or more cards this turn, this combo nets infinite colored mana.

This brilliant loop transforms Hollow One into a renewable mana source by leveraging Infinite Reflection to strip away its native cycling ability, neatly bypassing the restrictive exile replacement effect normally imposed by Abandoned Sarcophagus. Once discounted down to a cost of {1} or less after you've discarded enough cards, you can repeatedly cast Hollow One from your graveyard directly as a copy of Wild Cantor. From there, you simply sacrifice the copy to generate a mana of any color, and because Abandoned Sarcophagus allows you to replay it from the graveyard without exiling it (thanks to the copy effect erasing its printed cycling rules text), the cycle can be repeated infinitely.