Lonis, Genetics Expert, Jenny Flint, and Grinding Station

Prerequisites

• Lonis, Genetics Expert on the battlefield
• Jenny Flint on the battlefield
• Grinding Station on the battlefield
• You control at least one Clue

Steps

1. Activate Grinding Station by tapping it and sacrificing the Clue
2. Jenny Flint and Lonis' second ability trigger
3. Resolve the Lonis trigger, putting a +1/+1 counter on any other creature you control
4. Resolve the Jenny Flint trigger, putting a +1/+1 counter on Lonis
5. Lonis' first ability triggers, creating a Clue artifact token
6. When the Clue enters the battlefield, Grinding Station triggers, untapping Grinding Station
7. Resolve the Grinding Station ability from step 1, causing target player to mill three cards
8. Repeat

Results

• Infinite mill
• Infinite self-mill
• Infinite +1/+1 counters