Lonis, Genetics Expert, Piper Wright, Publick Reporter, and Grinding Station

Prerequisites

• Lonis, Genetics Expert on the battlefield
• Piper Wright, Publick Reporter on the battlefield
• Grinding Station on the battlefield
• You control at least one Clue

Steps

1. Activate Grinding Station by tapping it and sacrificing a Clue
2. Lonis' third ability and Piper Wright's second abilities trigger
3. Resolve the Lonis trigger, putting a +1/+1 counter on any other creature you control
4. Resolve the Piper Wright trigger, putting a +1/+1 counter on Lonis
5. Lonis' second 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