Ash's Blastoise (Aura)

Ash's Wartortle was Ash Calem Ketchum's sixth Pokémon.

Personality and characteristics
Wartortle is one of Ash's most trustworthy Pokémon, but is by no means perfect. Compared especially with his closest friend, the very serious Ivysaur, he comes across as immature and mischievous, particularly during his time as a Squirtle alone, where he would commit various pranks and so on. However through his travels with Ash, he matured considerably.

Mature or not, Wartortle is shown to prefer wearing sunglasses occasionally.