hidden power grass. (hidden power is an attack that can be ANY type except normal, and it can have up to a base of 70) for more infor go to serebii, anyways its a move most pokemon can learn to get a move that is a type usually unavailable to them. and altho hidden power (hp) always says normal, it never is. 1 last thing can be either a sp. att or physical attack. it depends on the type of hp it is.