Vodnik (Las Leyendas)

The Vodnik is minor antagonist in mexican cartoon series, Las Leyendas. Can steal souls from just about anybody, he prefers doing so to children as their souls are normally purer than those of adults.

Description
Used to be human, but transformed himself via dark magic. Is a collector of souls. And apparently his victims become zombie-like, as is the case with Alebrije. By the time of this episode, He's been doing this for decades, possibly centuries, and has acquired a collection large enough to fit three whole shelves, each with over 20 souls.

Claims to be saving children from corruption by adults, but he himself is just as cruel as any normal adult would be. Can travel between bodies of water of any size regardless of physical connectivity; from lakes to puddles.

Story
Once a human toy maker who intended to use his inventions to help others, he eventually got fed up with the the impurities of his fellow adults, and turned himself into a frog-like monster with dark magic. Now he steals the souls of children, trying to keep them from corruption.

In the episode that is titled with the same name captures Alebrije. Disguising his voice to be that of a gentle woman in peril to attract Alebrije, Vodnik used his kind and gentle nature against him. Vodnik is on the receiving end of this when Leo tricks him into consuming a magic potion that will compel him to answer three questions. The catch only two of the answers will be true with one of them being an outright lie. Given the simplicity of his objective, Leo elects to get around this obstacle by asking the same question thrice.

Once liberated, the souls of the children that the Vodnik kidnapped (along with Alebrije's soul) gang up on their former captor and drown him before returning to their bodies.