Not in vanilla Cobblemon. Needs the AllTheMons datapack (or my Cobblemon Survival Guide modpack, which includes it). Same in AllTheMons x Mega Showdown.
Best Spawn Conditions
AllTheMons datapack
Rarity
ultra-rare
Biomes
Lush
Weight
4.00
Level range
60 – 60
Time
any
Weather
any
Context
grounded
EV yield
3 Attack
Sky light
0 – 7
Best Poke Snack Berry(s)
Kelpsy
Presets
Natural, Wild
Properties
Has at least 3 perfect IVs