Mirrorpool + Splendid Reclamation + Troubled Healer + The Wandering Minstrel

Mirrorpool

Splendid Reclamation

Troubled Healer

The Wandering Minstrel

How it works

1. Cast Splendid Reclamation by paying 3.
2. Holding priority, activate any number of lands you control except Mirrorpool by tapping them, adding at least 2C.
3. Activate Troubled Healer by sacrificing a land other than Mirrorpool.
4. Repeat step 3 until Mirrorpool is the only land you control.
5. Activate Mirrorpool's second ability by paying 2C, tapping and sacrificing it, copying Splendid Reclamation.
6. Resolve the Splendid Reclamation copy, returning all land cards from your graveyard to the battlefield untapped due to The Wandering Minstrel.
7. Repeat from step 2.

This clever loop turns the graveyard into a renewable resource for your mana base, utilizing Troubled Healer's land-sacrificing ability to steadily clear away your other lands until only Mirrorpool remains. Once you're down to just Mirrorpool, you tap and sacrifice it to copy the Splendid Reclamation you cast, putting all those sacrificed lands right back into play. Because The Wandering Minstrel is on the battlefield, those returning lands bypass their usual slow start and enter untapped, immediately ready to generate the mana you need to fuel the next cycle.