Pokemon Black and White Pokedex - Shelmet, Accelgor

#122 Unova / #616 National
Species classification: Snail Pokemon
Hydration – Removes user's status ailment each turn when raining
Shell Armor – not affected by critical hits
Dream World ability: Overcoat – Doesn't take damage from weather conditions
Location found (Black/White): Route 8, Iccirus City, Moor of Iccirus (not available anywhere in Winter)
Wild hold items: None
Egg groups: Bug
Capture rate: 200
Gender ratio: 50/50
Effort values: 1 Defense
Evolution family: Shelmet >Accelgorvia trade withKarrablast

Shelmet's evolution Accelgor looks a bit peeved, standing with his arms crossed and his head down. It's no wonder, because his defensive armor has been stolen by a sneaky Karrablast/Escavalierduring a trade. That's why the Shelmet/Accelgor loses armor with evolution and Karrablast/Escavalier gains armor, and that armor swap is the catalyst for evolution when you trade one for the other.