Raichu is a dual-type pokémon, electric and psychic, that evolves from Pikachu when exposed to Thunder Stone. All Pikachu in Alola will evolve to Raichu regardless of their origin. The final form that Raichu can achieve in the Alola region is Pichu. Raichu looks like a rodent that is covered in dark orange fur with a cute white belly. Raichu has a yellow circular marking on each of its cheeks, which is its electric sacs. Raichu's tail is used to gather electricity from the air itself, or it could be planted in the ground to search for electricity to charge. Raichu can store over a hundred thousand volts of electricity, which is enough to knock out a Copperajah. His tail also protects Raichu from its own high-voltage power. A fanart Pokémon progress bar for YouTube with Raichu.