One of my players is a level 10 fighter (BAB +10/+5) and has a Maniac Hand (from Occult Adventures) that gives him a slam attack. Here are my questions:
1 - Does he get only one slam attack with it per the natural attack rules or two attacks thanks to his BAB?
2 - Can he use the hand special ability to gain an extra slam attack?
3 - Can he use Power Attack with the slam attack(s)?
Just for reference purposes:
Attacks made with a maniac hand receive a +2 competence bonus on attack and damage rolls. In addition, when making a full attack, the wielder can accept a –2 penalty to AC in order to make one extra attack with the hand using the wielder’s full base attack bonus. This benefit is not cumulative with similar effects, such as a haste spell. For the purposes of these bonuses, any weapon held in the maniac hand or in both hands qualifies, and the hand itself can deal damage as a slam attack appropriate to the wielder’s size (1d4 for a Medium creature).