Color Identity: G

Initial Card State
- All permanents on the battlefield (Marvin without summoning sickness).
Mana Needed
- ({3} magic symbol)
at most available.
Steps
- Activate Marvin using Gyre Sage's ability by tapping it, adding ({G} magic symbol)
for each +1/+1 counter on Marvin. - 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 if Marvin starts with +1/+1 counter(s) on it.
Results
- Infinite green mana.
- Infinite +1/+1 counters on a creature.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).