Mighty Ducks: The Animated Series (1996)

S01E06 Power Play

The episode focuses on Grin’s past and his transformation. Dragaunus is busy creating yet another bothersome energy creature, but he needs to distract the ducks first. Using his DNA Accelerator, he transforms a hockey enforcer named Stanley Straginsky into a monstrous adversary to hunt down the ducks he despises. As chaos unfolds, can Grin find a way to reach Stanley and help him see reason before he unleashes havoc on the team?