Darth Canoli
Arcane
I suppose if you have a domain power that can be used multiple times a day and you want to use regularly, you need Charisma. Am I wrong? Or all abilities from domains that can be activated several times per day suck?
There's some overpowered ones, like celerity (haste) or the tentacled horror summon, overpowered for chapters 1/2 but I guess with the new content, you won't need it anymore.
Celerity is still good and there's so many domains you can find other useful activable powers.