Lonis, Genetics Expert, Bartolomé del Presidio, and Double Major

Prerequisites

• Lonis, Genetics Expert in hand
• Bartolomé del Presidio on the battlefield
• Double Major in hand
• You control at least one Clue token
• available

Steps

1. Cast Lonis by paying
2. Holding priority, cast Double Major by paying , creating a nonlegendary copy of the Lonis spell
3. Resolve both Lonis spells
4. Activate Bartolomé del Presidio by sacrificing a Clue
5. Lonis and the Lonis token's second abilities trigger
6. Resolve the nontoken Lonis trigger, putting a +1/+1 counter on the token Lonis
7. The token Lonis's first ability triggers, creating a Clue artifact token
8. Resolve the token Lonis's trigger from step 2, putting a +1/+1 counter on the nontoken Lonis
9. The nontoken Lonis's first ability triggers, creating a Clue artifact token
10. Resolve the Bartolomé del Presidio ability
11. Repeat from step 4

Results

• Infinite +1/+1 counters
• Infinite Clue tokens