Mirrorpool + Splendid Reclamation + Archelos, Lagoon Mystic + Troubled Healer

Mirrorpool

Splendid Reclamation

Archelos, Lagoon Mystic

Troubled Healer

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 Archelos.
7. Repeat from step 2.

This brilliant recursive engine feeds on the graveyard-filling power of Splendid Reclamation to achieve a magnificent state of abundance. By utilizing Troubled Healer's ability to systematically clear away your other lands by sacrificing them, you isolate Mirrorpool until it alone remains to copy the original spell. Meanwhile, the crucial presence of Archelos, Lagoon Mystic in its untapped state ensures that when that copied spell floods the battlefield with your discarded lands, they return ready for immediate use.