Lonis, Genetics Expert, Donatello, the Brains, and Krark-Clan Ironworks

Prerequisites

• Lonis, Genetics Expert on the battlefield
• Donatello, the Brains on the battlefield
• Krark-Clan Ironworks on the battlefield
• available

Steps

1. Activate a Mutagen by paying , 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. Activate Krark-Clan Ironworks by sacrificing the Clue, adding
4. Lonis's third ability triggers, putting a +1/+1 counter on any other creature you control
5. Repeat

Results

• Infinite +1/+1 counters on creatures you control
• Infinite Clue tokens
• Infinite card draw
• Infinite colorless mana
• Infinite draw triggers