Abandoned Sarcophagus + Infinite Reflection + Rith's Attendant + Wild Dogs

Abandoned Sarcophagus

Infinite Reflection

Rith's Attendant

Wild Dogs

How it works

1. Cast Wild Dogs either from your hand or from your graveyard by paying , causing it to enter the battlefield as a copy of Rith's Attendant due to Infinite Reflection.
2. Activate Wild Dogs by paying 1 and sacrificing it, adding .
3. If you cast Wild Dogs from your graveyard, Wild Dogs is not exiled by Abandoned Sarcophagus due to Infinite Reflection removing Wild Dogs's cycling ability.
4. Repeat.

This clever loop turns the unassuming Wild Dogs into a renewable mana source by leveraging Infinite Reflection to overwrite its creature type and stats into a copy of Rith's Attendant upon entry. Normally, Abandoned Sarcophagus would exile Wild Dogs after it hits the graveyard since it wasn't actually cycled, but Infinite Reflection strips away the card's printed cycling ability so it safely stays in your graveyard instead. With this protection in place, you can continually recast Wild Dogs to sacrifice it to its own activated ability for a net gain of mana.