Axem Dimentio

Axem Dimentio, or Axem Purple, is the main villain in Super Mario Bros: Dimentio's Return. As his name implies, he is a recreated Dimentio with a new body made by Lord Smithy. However, Dimentio kills Smithy, and The Axem Rangers immediantly join Dimentio. He is killed at the end of the movie by his own harmful chemical called the Gear Melter, a harmful chemical thats melts anything or anyone on contact.

A Reformed Villain
Lord Smithy found Dimentio's mask lying in the sand in Yold Ruins. He reliazes that Dimentio could be a huge help to The Smithy League. However, Dimentio betrays Smithy, killing him with the Gear Melter. He makes a new purple and yellow body, now calling him Axem Purple.