well he was captured in a soulstone first and then he's soulstone was the 1st of the 3 to be shattered in the Hellforege (im pretty sure that Baal's soulstone hasnt been destroyed)
Diablo by far is the most evil, I mean come on. he corrupted King Leoric, made him turn on his own town. He used trickery and deceit to drive people mad. He made the Warrior evil by controlling him, and took over his body. Ya know the Wanderer.
Who is the most evil of the Three?
Poll: Who is the most evil?
Who is the most evil?
Who is the most evil? - Single Choice