Marvin, Murderous Mimic + Farmstead Gleaner + Metalworker

Prerequisites

• You have an artifact card in hand.

Steps

1. 1Activate Marvin using Metalworker's ability by tapping it, revealing at least one artifact card from your hand and adding at least .
2. 2Activate Marvin using Farmstead Gleaner's ability by paying and untapping it, putting a +1/+1 counter on Marvin.
3. 3Repeat.

Effects

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