Quote Originally Posted by Chronos View Post
The flavor of this is absolutely great. On the question of balance, though... Do bard and rat-a-tat levels stack for determining what bardic music abilities the character gets, or just for the number of daily uses? For instance, would a Bard 10 / Rat-a-tat 8 be able to use Mass Suggestion?
No, it only stacks for the daily uses of the music.

"Bardic Music: Rat-a-tat levels stack with bard levels for the purpose of determining the rat-a-tat's daily uses of his bardic music abilities (if any) and the value of the bonus granted by this music."

Also, any permanent-duration ability that carries no expense can get very powerful, very quickly. Every day that your rat-a-tat has nothing better to do with his music, he's going to animate another item. It won't take too long before he's got every bit of trash in the city serving him. To balance this, you might set some limit on the maximum amount of such items he can have at a time... Perhaps 4 times his class level in hit dice?
Well, there is the bit though about them not ever being able to leave the city.
So, I mean, if the campaign never leaves the city, and he uses up almost all his bardic music in one go for days straight it 'is' possible... so I dunno.