Peregrine Drake + Stonecloaker + Yarok, the Desecrated

Peregrine Drake

Stonecloaker

Yarok, the Desecrated

How it works

1. Activate up to five lands by tapping them, adding at least 2.
2. Cast Peregrine Drake by paying its mana cost.
3. When Peregrine Drake enters, it triggers twice. Resolve the first trigger, untapping five lands.
4. Holding priority, activate up to five lands by tapping them, adding at least 2.
5. Resolve the second Peregrine Drake trigger, untapping five lands.
6. Cast Stonecloaker by paying its mana cost.
7. When Stonecloaker enters, it triggers twice, returning it and Peregrine Drake from the battlefield to your hand.
8. Repeat.

This ingenious loop turns a modest land-untapping flyer into an engine for infinite mana, leveraging Yarok, the Desecrated to double every single "enters the battlefield" trigger in sight. When you cast Peregrine Drake, Yarok doubles its land-untapping ability, producing a massive surplus of mana while you weave in activations between the resolving triggers. Then, flashing in Stonecloaker lets its own doubled entry triggers bounce both itself and the Drake right back to your hand. Because Stonecloaker conveniently saves itself along with the Drake, you can recast the entire sequence indefinitely to fuel infinite storm, endless creature triggers, and limitless mana of any color your lands can produce.