Legends lore suggests Maul's tattoos were part of Sidious' torturous Sith training.
The question as to why Darth Vader would let Ahsoka Tano survive and not hunt her down as a surviving Jedi has a few ...
The labored breathing accompanied by a foreboding rumbling tone that can give you chills made Darth Vader one of the more dreaded villains to ever appear on screen.