Escavalier is an insect-like Pokémon that resembles a beetle clad in snail-shell armor. Its main body is actually quite small compared to the Armour with the visible areas that aren't armor being most of its body. It hasn't grown much compared to its pre-evolution with only a more pointed head, the fact its face has moved up its body and has grown slightly longer and slimmer. The armor it wears has been taken from Shelmet and has been enhanced for combat. It has made two lances, one for each hand, and has split the helmet into two parts. One for head protection which now includes a metallic plume attached to the top of the helmet and armor attached to its legs which comes in a spiral and has a red spike protruding from it which is implied that Escavalier walks with.
Escavalier seems to be based on the Japanese Snail-eating Beetle, due to its evolutionary relationship with Shelmet (it appears to steal Shelmet's shell to use as armor). Its appearance is like that of a medieval jouster, knights that rode horses and held lances in tournaments.
Escavalier's name may come from the words "escargot" ("snail" in French), and "cavalier". Escavalier's name may also be based off the legendary sword "Excalibur".