Lonis, Genetics Expert, Sarcatog, and Spark Double

Prerequisites

• Lonis, Genetics Expert on the battlefield
• Sarcatog on the battlefield
• Spark Double on the battlefield
• You control at least one Clue token
• Spark Double on the battlefield as a copy of Lonis

Steps

1. Activate Sarcatog by sacrificing a Clue
2. Lonis and Spark Double's second abilities trigger
3. Resolve the Lonis trigger, putting a +1/+1 counter on Spark Double
4. Spark Double's first ability triggers, creating a Clue artifact token
5. Resolve the Spark Double trigger from step 2, putting a +1/+1 counter on Lonis
6. Lonis' first ability triggers, creating a Clue artifact token
7. Resolve the Sarcatog ability
8. Repeat

Results

• Infinite +1/+1 counters
• Infinite Clue tokens
• Infinitely large Sarcatog until end of turn