Sorcerer bloodline powers and Ability Focus?

[Artemis Moonstar]

So I was perusing over Monster feats for a game I'm in where I am playing a changeling... And I came across this little diddy.

Ability Focus (Monster)
Prerequisite: Special attack.

Benefit: Choose one of the creature's special attacks. Add +2 to the DC for all saving throws against the special attack on which the creature focuses.

Special: A creature can gain this feat multiple times. Its effects do not stack. Each time the creature takes the feat, it applies to a different special attack.

Could a non-monster character, say human for example, take Ability Focus to increase the DC of one of a bloodline's attack powers.

For example, something like:

Serpent’s Fang (Ex): At 1st level, you can grow fangs as a free action. These fangs are treated as a natural weapon inflicting 1d4 points of damage plus your Strength modifier (1d3 if you are Small) plus poison (Bite—injury; save Fort DC 10 + 1/2 your sorcerer level + your Constitution modifier; frequency 1/round for 6 rounds; effect 1 Con damage; cure 1 save). At 5th level, these fangs are considered magical for the purpose of overcoming DR and the poison damage increases to 1d2 Con. At 7th level, your poison requires 2 successful saves to cure. At 11th level, your poison damage increases to 1d4 Con. You can use your fangs for a number of rounds per day equal to 3 + your Charisma modifier.

Would that not be considered a 'special attack'?

[Rathendar]

Ability Focus has been used on monsters with poison before if that helps as a reference, but even so it would still technically need a GM o.k. to be taken by a PC.

[mdt]

As long as the GM allows players to take feats from the Bestiary, it should work fine. For PFS, no, it's not allowed.

So as Rathendar says, it's up to the GM (assuming you're not in PFS).

[Starglim]

I checked a Paizo stat block for a sorcerer which lists the character's sorcerer bloodline ability in the special attack line. It looks as if she should qualify.

[The black raven]

The Halfling Jinx alternate racial trait (from Halflings of Golarion) explicitely states that it can be improved with Ability Focus.

Since such a statement does not exist for Bloodline Powers, I would rule against it. YMMV

[Tom S 820]

Unless "pathfinder" made wierd rule there is no such thing as "player" only feats and "monster" only feats. There is just feats. What feat set you use is up to you and DM. It works for alot of stuff in patfinder Assassin's death attack, Dragon D. Breath weapon, Witchs Hex, Cleric channel engery, Monk stunning fist, sorcerer Blood line power, Alchemist Bomb, and Oracle mystey off the top of my head.