Prerequisites
- Flitwing, Lyev Detective on the battlefield
- Ulvenwald Mysteries on the battlefield
- Ravenous Intruder on the battlefield
Steps
- Activate Ravenous Intruder by sacrificing a Clue
- Ulvenwald Mysteries' second ability triggers, creating a Clue token due to Flitwing
- Resolve the Ravenous Intruder ability, giving Ravenous Intruder +2/+2 until end of turn Repeat
Results
- Infinite artifact ETB
- Infinite artifact LTB
- Infinite artifact sacrifice triggers
- Infinitely large creature until end of turn
Required Cards 3

Flitwing, Lyev Detective
Legendary Creature — Faerie Detective

Ulvenwald Mysteries
Enchantment

Ravenous Intruder
Creature — Gremlin