Requires

Shifting Woodland must be on the battlefield. Aftermath Analyst must be in the graveyard. Troubled Healer must be on the battlefield. Spelunking must be on the battlefield. There are at least four card types among cards in your graveyard. Lands you control and/or land cards in your graveyard that enter the battlefield untapped can tap to produce at least . Mana needed:

Steps

1. Activate Troubled Healer by sacrificing any land except Shifting Woodland.
2. Repeat step 1 until you control no other lands except Shifting Woodland.
3. Activate Shifting Woodland's second ability by paying , causing it to become a copy of Aftermath Analyst until end of turn.
4. Activate Shifting Woodland by paying and sacrificing it, returning it and all other land cards from your graveyard to the battlefield untapped due to Spelunking.
5. Activate any number of lands by tapping them, adding at least .
6. Repeat.

Results