Rotom

Rotom is the Electric/Ghost type Pok'emon from the fourth generation of Pok'emon. While it doesn't have any pre-evolved or evolved forms, Rotom is able to possess and take on the form of any electrical appliances. For each electronic appliance it possesses, Rotom is able to change its secondary typing while retaining is primary Electric-type: Fire- when possessing a microwave oven, Ice-type when possessing a refrigerator, Grass-type when possessing a lawn mower, Flying-type when possessing an electric fan, and Water-type when possessing a washing machine.