Cauldron Haze + Solemnity + Phyrexian Altar + Archaeomancer

Cauldron Haze

Solemnity

Phyrexian Altar

Archaeomancer

How it works

1. Cast Cauldron Haze by paying 1W/B, giving Archaeoamncer and at least one additional creature with base toughness two or greater persist until end of turn.
2. Activate Phyrexian Altar by sacrificing Archaeomancer and the additional creature, adding 1W/B.
3. When the creatures die, their persisit abilities trigger, returning themselves from your graveyard to the battlefield with zero -1/-1 counters due to Solemnity.
4. When Archaeomancer enters the battlefield, it triggers, returning Cauldron Haze to your hand from your graveyard.
5. Repeat.
6. If you control an additional nontoken creature with base toughness two or greater, you may also sacrifice and return it to get infinite colored mana.

This clever loop relies on Solemnity to completely neutralize the mechanical drawback of persist, allowing your creatures to bounce back from the graveyard entirely fresh. When you sacrifice Archaeomancer and an additional creature to Phyrexian Altar, their persist triggers return them immediately, protected from -1/-1 counters by Solemnity's static blanket. As Archaeomancer re-enters the battlefield, its trigger snatches Cauldron Haze right back out of your graveyard so you can cast it again to restart the whole cycle.