Paradox Engine + Stonecloaker

Paradox Engine

Stonecloaker

How it works

1. Cast Stonecloaker.
2. Paradox engine triggers untapping all our non-lands.
3. On resolution, Stonecloaker's ETB effects trigger, to preserve your own graveyard stack them as bounce, then exile, but to just exile all yards, order doesn't matter.
4. Tap all non-land mana sources for mana.
5. Responding to the exile trigger by casting Stonecloaker again allows you to repeat this process ad nauseum while only selecting a finite number of targets before letting the exile effects resolve.