
peter Andreasen |

from the web enhancment:
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Lion’s Shield
Aura moderate conjuration; CL 10th
Slot shield; Price 9,170 gp; Weight 15 lb.
Description
This +2 heavy steel shield is fashioned to appear to be a roaring
lion’s head. Three times per day as a free action, the lion’s
head can be commanded to attack (independently of the
shield wearer), biting with the wielder’s base attack bonus
(including multiple attacks, if the wielder has them) and
dealing 2d6 points of damage. This attack is in addition to any
actions performed by the wielder.
Construction
Requirements Craft Magic Arms and Armor, summon nature’s
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I really like this item for its levelling properties, drawing the to-hit from wielders attack bonus... but then I noticed the "base" in "base attack bonus" and got sad and frustrated ....(really!)
is it really limited to BAB only or what kind of bonuses and multipliers would apply to the shield?
would personal buffs like divine might cut it? - what about AO buff?
what about damage bonuses like sneak attack or smite evil

Quixque |

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Lion’s Shield
----------------------I really like this item for its levelling properties, drawing the to-hit from wielders attack bonus... but then I noticed the "base" in "base attack bonus" and got sad and frustrated ....(really!)
is it really limited to BAB only or what kind of bonuses and multipliers would apply to the shield?
would personal buffs like divine might cut it? - what about AO buff?
what about damage bonuses like sneak attack or smite evil
As that it is the object actively making attacks with no input from the bearer, only the object's properties would affect the attack and damage. When activated, the shield would be treated as a small animated object, giving the shield a Strength of 10. Therefore, it wouldn't have any bonuses or penalties to attack and damage.
It's reasonable to further enchant the shield as a magic weapon (or cast magic weapon/ greater magic weapon) which would give the shield bonuses to attack and damage when animated as well as when used by the bearer to shield bash. A tower shield version could also be crafted that would be a medium animated object with a Strength of 12.
A generous DM might also allow Strength enhancing spells to affect the shield if cast on the shield itself.

Takamonk |

I'm a fan for enlarge person, but that won't improve your chances of hitting with it.
Thus I think the only way you can improve your chances would be to add more attacks. I would scour for ways to add attacks to your roster, such as haste, natural attacks, etc.
Fortunately, a monk can't use shields, otherwise we'd never end his turn.