Lonis, Genetics Expert, Piper Wright, Publick Reporter, and Bartolomé del Presidio

Prerequisites

• Lonis, Genetics Expert on the battlefield
• Piper Wright, Publick Reporter on the battlefield
• Bartolomé del Presidio on the battlefield
• You control at least one Clue

Steps

1. Activate Bartolomé del Presidio by 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. Resolve the Bartolomé del Presidio ability from step 1, putting a +1/+1 counter on it
7. Repeat

Results

• Infinite +1/+1 counters