How to Get Lampyr in Catch a Monster Guide
Lampyr is one of the newest event pets added to Catch a Monster during the Undine Evolution update. Since the pet has strong stats and limited availability, many players are currently farming the event nonstop trying to get higher-rank versions before the update ends. If you are wondering how to unlock Lampyr, hatch it, and improve your chances at getting A Rank or S Rank variants, here is a full guide.
What is Lampyr?
Lampyr is a special event pet connected to the new Circus Island boss event in Catch a Monster. The pet comes from the new Lampyr Event Egg and currently has multiple rarity versions including:
- E Rank
- A Rank
- S Rank
The higher the rank, the stronger the stats become.
How to Get Lampyr

To obtain Lampyr, players must defeat the new Lampyr Boss that spawns on Circus Island. After defeating the boss, players have a chance to receive:
- Lampyr Event Eggs
- Undying Coins
- Treasure Tickets
- Event Materials
The Lampyr pet itself comes from hatching the event egg, not directly from the boss fight. After getting the Lampyr Event Egg, players can hatch it for different rarity versions of the pet. Current known rates include:
- S Rank: around 1 in 356
- A Rank: around 1 in 72
Luck boosts and gamepasses may improve these odds slightly. Because the S Rank chance is extremely low, many players save eggs for global luck boosts or admin events.
Lampyr Stats
Here are the currently known stats for Lampyr ranks.
- E Rank Lampyr 43.8 Million HP 2 Million Damage
- A Rank Lampyr 125 Million HP 5.7 Million Damage
- S Rank Lampyr 162 Million HP 7.4 Million Damage
The S Rank version is currently considered one of the stronger event pets available in the game.
Lampyr Boss Location

The Lampyr boss appears on Circus Island during the active Undine Evolution Event. The boss usually spawns near the circus tent area after the event timer finishes. Because many players gather before the spawn starts, joining active servers early can help you secure faster boss clears. The current event boss has around:
- 235 Billion HP
This makes the fight difficult for newer players or players using outdated pets. Public servers are usually the easiest way to defeat the boss quickly.
Is Lampyr Worth Getting?
For most active players, definitely yes. Lampyr currently has very strong stats for an event pet and fits well into newer team builds focused on the Undine update. The event also gives useful rewards even if you do not immediately pull an S Rank version. Because the event is limited, many players are farming now before Lampyr potentially becomes unavailable later.
Lampyr is easily one of the biggest highlights from the latest Catch a Monster update. While getting the S Rank version may take some grinding and luck, even lower-rank versions can still help players progress through newer content. Right now, the best strategy is farming the Circus Island boss consistently, saving eggs for boost events when possible, and upgrading your team so you can clear future spawns even faster.
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