She doesn't suggest you to be Bhaal's puppet, just to embrace your birthright and take the power for yourself - which is in line in what she believes in: power is everything.
Power to be a Bhaal's puppet to try eliminate every life from Faerun. To be ruler of void at the end. Still strange for me her not to try to make you refuse Bhaal because it would be much better to rule by your own then under mad slaughter god who wants nothing but everyone dead.
