Farmstead Gleaner + Forensic Gadgeteer + Urza, Lord High Artificer

U identity

Commander legal

The 3 combo pieces

• Farmstead Gleaner
• Forensic Gadgeteer
• Urza, Lord High Artificer

How to execute it

1. Activate Urza's first ability by tapping Farmstead Gleaner, adding {U}.
2. Activate Farmstead Gleaner by paying {1} and untapping it, putting a +1/+1 counter on it.
3. Repeat.

What the combo produces

• Infinite +1/+1 counters on a creature