Sailor Moon Series 2 #58 - Neflite
Neflite succeeded Jedite as Queen Beryl’s™ evil emissary. He was a formidable enemy who fought not only out of loyalty to the Negaverse, but also because of his own pride. His fighting powers wer so intense that he nearly defeated the Sailor Scouts in many battles. His betrayal by Zoycite led to his destruction.
Because of his mortal side, his own ally Zoycite caused his downfall.