Fool's Demise + Palinchron + Phyrexian Altar

Fool's Demise

Palinchron

Phyrexian Altar

How it works

1. Activate up to seven lands by tapping them, adding at least 3.
2. Activate Phyrexian Altar by sacrificing Palinchron, adding one mana of any color.
3. Fool's Demise's first and second abilities trigger.
4. Resolve the first Fool's Demise trigger, returning Palinchron from your graveyard to the battlefield.
5. When Palinchron enters the battlefield, it triggers, untapping up to seven lands.
6. Resolve the second Fool's Demise trigger, returning Fool's Demise to your hand from your graveyard.
7. Cast Fool's Demise by paying 4, targeting Palinchron.
8. Repeat.
9. If the seven lands can tap to produce at least 4, this combo nets infinite colored mana.

This elegant loop turns the self-contained synergy of Palinchron and Fool's Demise into an endless fountain of resources, provided your lands can generate at least four mana to recast the Aura. Each time Palinchron is sacrificed to Phyrexian Altar for mana, Fool's Demise triggers twice—simultaneously returning the leviathan to the battlefield to untap your lands and bouncing itself back to your hand so you can cast it anew.