First let me say I lost my copy of Issue 125 (2nd installment) so I no longer have the stats for the original ebon aspect. I do own the miniatures handbook and the fiendish codex #1. Both of those books feature alot of different aspects.
Since the forgotten realms ebon triad is devoted to different gods what unique powers should the aspect have in lue of the powers given? (The gods are Bane, Bhaal, and Murkyl) And since I dont have my issue of dungeon anymore I was going to use one of the aspects I have in my books and just change it's special abilities. But who should I use as the base aspect?
But who should I use as the base aspect?
Easiest thing here is just don't change it. You may need to change the spiritual weapon to something appropriate for the god that grants that power, otherwise you can run it exactly as written. You'll probably find the PCs will be too busy trying to stay alive than worry too much about anything else.