Guts: 1.5x ATK with a major status condition. Doesn't lose ATK from burn.
Swarm: When it has 1/3rd or less max HP, its Bug-type moves have 1.5x power.
Shell Armor: Immune to critical hits.
Skill Link: Moves that hit 2-5 times always hit 5 times.
Hidden
Overcoat: Doesn't take damage from weather.
Moxie: Gains an ATK stage after KO'ing a Pokémon.
Entry
At night, it burrows a hole in the seafloor with its broad tongue to make a place to sleep. It is completely clad in a steel-hard shell
PokémonPoké.
90.214
ProfessorProf.
Oak
Entry
It scurries along the bottom of the sea, rarely seen above water. Nobody knows what is inside its shell.
PokémonPoké.
214.90
ProfessorProf.
Krune
x2
x2
x1
x1
x1/2
x1/2
#90
Shellder
+
builderbosc
#91
Cloyster
+
Game Freak & goseigen
#214
Heracross
+
Pokémon TCG & geline9854
Classic Mode
Route 17, 23, 26, 27, 42, Boon Island, Brine Road, Chrono Island, Crimson City, Kin Island, Kindle Road, Knot Island, Resort Gorgeous, Ruins of Alph, Seafoam Islands, Vermillion City, Water Labyrinth
Deep Sea (static), Seafoam Islands, Evolve Shellder (Water Stone)
Safari Zone A3 (trade), Ilex Forest
Remix Mode
Route 10, 19, 20, 23, 42, Boon Island, Brine Road, Cerulean Cave, Chrono Island, Crimson City, Kin Island, Kindle Road, Knot Island, Seafoam Islands, Vermillion City, Water Labyrinth
Deep Sea (static), Route 30, Dragon's Den, Seafoam Islands, Evolve Shellder (Water Stone)
Safari Zone A3 (trade), Route 4, Ilex Forest, Safari Zone A1, A3, A4, Violet City