Lonis, Genetics Expert, Donatello, the Brains, and Mutagen Man, Living Ooze

Prerequisites

• Lonis, Genetics Expert on the battlefield
• Donatello, the Brains on the battlefield
• Mutagen Man, Living Ooze on the battlefield
• available

Steps

1. Activate a Mutagen by paying due to Mutagen Man, tapping and sacrificing it, putting a +1/+1 counter on Lonis
2. Lonis' second ability triggers, creating a Clue and a Mutagen token due to Donatello
3. Repeat

Results

• Infinite Clue tokens
• Infinite +1/+1 counters on a creature