Color Identity: G

Initial Card State
- All permanents on the battlefield (Marvin without summoning sickness).
Mana Needed
- ({1} magic symbol)
({G} magic symbol)
at most available.
Steps
- Activate Marvin using Selvala's ability by paying ({G} magic symbol)
and tapping it, adding ({G} magic symbol)
plus an amount of colored mana equal to the greatest power among creatures you control minus 1. - Activate Marvin using Farmstead Gleaner's ability by paying ({2} magic symbol)
and untapping it, putting a +1/+1 counter on Marvin. - Repeat.
Notes
- The mana cost can be reduced to ({G} magic symbol)
if you control a creature with power 3 or greater as you start the combo.
Results
- Infinite colored mana.
- Infinite +1/+1 counters on a creature.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).