Powerful Bite( Lords of Madness, p. 23)
An aboleth with this feat develops jaws that are much more muscular than normal, allowing it to bite more effi ciently.
Weapon Focus (PH) (bite) , STR 28, Aboleth,
Reach Bite (LoM) ,
An aboleth with this feat gains a natural bite attack that deals 2d6 points of damage plus half its Strength modifi er. If the aboleth makes a full attack, this bite attack is a secondary attack and is made with a -5 penalty on the attack roll.
The aboleth's bite attack is an unarmed strike that takes a fullround action to use and deals 1d4 points of damage on a hit.