Cloyster
No.091 · Bivalve Pokémon
WaterIce
Water
IceOnce it slams its shell shut, it is impossible to open, even by those with superior strength.
Birthday Pokémon for March 31
Your birthday Pokémon
Also this date
Lumineon
No.457 · Neon Pokémon
Water
Uses its gleaming fins to hunt its prey. The view of Lumineon schooling near the surface of the sea at night is breathtaking— it's as though there were shining stars right there.
Corviknight
No.823 · Raven Pokémon
FlyingSteel
Flying
SteelWith their great intellect and flying skills, these Pokémon very successfully act as the Galar region’s airborne taxi service.
Pokédex data
Of the 3 on this date, Corviknight is the tallest, Cloyster the heaviest, and Cloyster has the highest base stat total.
Cloyster
- Gen
- Generation I
- Colour
- Purple
- Habitat
- Sea
- Evo
- Middle stage
- Height
- 1.5 m
- Weight
- 132.5 kg
Base stats
HP50
Attack95
Defense180
Sp. Atk85
Sp. Def45
Speed70
Total525
Type matchup
Weak toElectricGrassFightingRock
Electric
Grass
Fighting
RockResistsIceWater
Lumineon
- Gen
- Generation IV
- Colour
- Blue
- Habitat
- —
- Evo
- Middle stage
- Height
- 1.2 m
- Weight
- 24 kg
Base stats
HP69
Attack69
Defense76
Sp. Atk69
Sp. Def86
Speed91
Total460
Type matchup
Weak toElectricGrass
ResistsFireWaterIceSteel
FireCorviknight
- Gen
- Generation VIII
- Colour
- Purple
- Habitat
- —
- Evo
- Fully evolved
- Height
- 2.2 m
- Weight
- 75 kg
Base stats
HP98
Attack87
Defense105
Sp. Atk53
Sp. Def85
Speed67
Total495
Type matchup
Weak toFireElectric
ResistsGrassBugNormalFlyingPsychicDragonSteelFairy
Bug
Normal
Psychic
Dragon
FairyImmune toPoisonGround
Poison
GroundWhy this Pokémon
March 31 is day 91 of the year on a leap-year calendar. Divided by 366 that leaves a remainder of 91, and every Pokédex number leaving the same remainder belongs to this date. The lowest of them, No.091, is the one this page leads with.
The straightforward reading — 27 July becomes No. 727 — breaks down in November, where the numbers run past 1025 and leave those birthdays empty. Cycling through 366 keeps every date filled.