Color Identity: G

Initial Card State
- All permanents on the battlefield.
Easy Prerequisites
- Other lands you control can tap to produce at least ({4} magic symbol)
({C} magic symbol)
.
Steps
- Activate any number of other lands by tapping them, adding at least ({4} magic symbol)
({C} magic symbol)
. - Activate Sylvan Safekeeper by sacrificing a land except Mirrorpool.
- Repeat step 2 until you control no lands except Mirrorpool.
- Activate Mirrorpool's third ability by paying ({4} magic symbol)
({C} magic symbol)
, tapping and sacrificing it, creating a token copy of Lumra. - Put the Lumra token into your graveyard due to the legend rule.
- The Lumra token's enters-the-battlefield ability triggers, causing you to mill four cards and return all land cards from your graveyard to the battlefield tapped.
- When the lands enter the battlefield, Tiller Engine triggers that many times, untapping the lands.
- Repeat.
Results
- Infinite ETB.
- Infinite death triggers.
- Infinite self-mill.
- Infinite mana lands you control can produce.
- Infinite landfall triggers.
- Put all land cards from your library and graveyard onto the battlefield.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).