Farmstead Gleaner + Heronblade Elite + Marvin, Murderous Mimic

G identity

Commander legal

The 3 combo pieces

• Farmstead Gleaner
• Heronblade Elite
• Marvin, Murderous Mimic

How to execute it

1. Activate Marvin using Heronblade Elite's ability by tapping it, adding an amount of colored mana equal to its power.
2. Activate Marvin using Farmstead Gleaner's ability by paying {2} and untapping it, putting a +1/+1 counter on Marvin.
3. Repeat.

What the combo produces

• Infinite +1/+1 counters on a creature
• Infinite colored mana