Nim Deathmantle + Phyrexian Altar + Palinchron

Nim Deathmantle

Phyrexian Altar

Palinchron

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. When Palinchron dies, Nim Deathmantle triggers, returning Palinchron from your graveyard to the battlefield, and attaching Nim Deathmantle to it.
4. When Palinchron enters the battlefield, it triggers, untapping up to seven lands.
5. Repeat.
6. If the lands can tap to produce at least 4, this combo nets infinite mana.

This classic loop transforms the massive mana-producing potential of Palinchron into a self-sustaining engine of creation and resurrection. By utilizing Phyrexian Altar to sacrifice the leviathan, you immediately generate the mana needed to pay for Nim Deathmantle's triggered ability, which brings Palinchron right back to the battlefield while re-equipping itself in the process. As Palinchron re-enters, its untap trigger refreshes your lands to fuel the next iteration, effortlessly turning your land base into an infinite fountain of colored mana.