Sawtron

Sawtron is a  electric  saw-themed  Gigatron  created  by  Sparks  from  a  electric saw  and  the  main  villain   who  appeared  in the SML  Short  Jeffy's  New Saw  where  Sparks sneaks  into  the Jeffy and  Bowser Jr.'s house  and he  uses  the  Gigatron-Maker  and  he infected Jeffy's old  electric saw  to  create him later  he got  attacked  by  Zoey Reeves  Steel  Nate Sliva  and Ravi Shaw  along  with  Freddy the Flamingo and they destroyed him for good