Master Garmadon is similar with Anakin Skywalker as both were gained nefarious reputation when turned to the dark side, transformed into black-clad entity, manipulated by a greater evil whom brought them to the dark side (Overlord for Garmadon and Palpatine for Anakin), and finally able to redeemed themselves with help of their archenemy that turned out to be their sons. The difference however, whereas Anakin died in peace soon after he redeemed himself, Garmadon survived longer. Also, whereas Anakin was able to redeem himself with his own terms, Garmadon can only be able to redeem himself after Great Devourer's venom that corrupt his mind like a parasite exorcized from him.