Speaking of differentiating and balancing the Sith Lords, each one should’ve had a unique power. Vader’s could be force choke (as in, making that only Vader’s thing) or something else that matches his cold brutal nature. Palpatine’s should be the lightning, it’s perfect for him. Wicked and twisted like a dark wizard. Dooku should be something Dracula-like, perhaps a vampiric “sucking of force power” or something. Maul should be something savage and animalistic, taking inspiration from big cats.