I'm a level 41 evil character. Really Great! Melee Spellcaster. You do not have to take sold your soul background. There is a hemet that gives you +20 magic aptitude and -20 alignment. This happens every time you put the hemet on. So I bougt it real early in the game and just kept taking it off and putting it on and my magic aptutude spikes to 100 and anf alignment dropped to -100, I have done all the good quests (and some evil ones like assasinating the king of Caladon) and my alignment is still at -100 without me ever having put the helm on again. Also great for followers cause then you can make them powerfull mages early on in the gaem. You need no persuasion for Torian Kell. I had exeprt persuasion, but geoffry as not interested (didnt have the option to ask him) but was with my good character with no persuasion, but didnt join cause I wasnt eil enough. Evil Charater is great cause you can use the Bagallian Scourge as a Melee weapon and it REALLY KICKS ASS 5-30 damage, 17 speed, poison on every hit and randomly casts lightningh boltm quench life and harm on your enemies

I took educator for my backgounmd so that all my followers would have expert Melee and dodge, but up to you, I think sold your soul is a waste on account of the helmet. Good party members are torian Kel, Keep Virgil and make him evil, Tollo Underhill and an elf mage you find in Tseng Ang