hellmouth lash question

[Corwin Illum]

So i was thinking about making a whip based Eldritch Knight when i saw the tiefling spell for hellmouth lash and i had several questions about it

1) is it pathfinder society legal?

2) Weapon focus whip would seemly work. Would weapon specialization? If not, why not?

3)What about arcane strike, similar reasoning.

Power attack specifically calls that it cannot be used on touch attacks. Arcane strike has no such provision.

[Corwin Illum]

New to pathfinder and could use some help!

[blackbloodtroll]

1) Yes.

2) Yes, it goes on to note how it does, and does not, function as a whip.

3) The Arcane Strike feat works fine with it.