Jayce and the Wheeled Warriors Season 1 Episode 44 A Question of Conscience

Years ago Ghash was turned into a winged monster by a wizard when his greed led him to attempt to take the wizard's book of magic spells. Ghash makes a deal with Saw Boss to lure Jayce into a trap. In exchange Ghash will be made normal again. When Ghash realizes Saw Boss is going to destroy Jayce, his conscience causes him to give Jayce back his transmitter which provides communication with the vehicles and Ghash joins in the fight against Saw Boss. The wizard has watched it all and sees that Ghash has learned to be selfless and returns him to his normal form (something Saw Boss was incapable of anyway).