Nail said:
Understood.
But you'll notice your list (short as it is) is composed of only divine touch spells. This is an arcane archer. What arcane spells would be out-of-balance, given the prereq.s of the PrC and the likely caster level of the arcane archer?
Touch of Fatigue (0 level) (Fort Save)
Shocking Grasp (1st) (NO save)
Chill Touch (1st) (Fort Partial)
Touch of Idiocy (2nd) (NO save)
Ghoul Touch (2nd) (Fort Save, but repeated uses) - bad choice for arrow
Vampiric Touch (3rd) (NO save)
Note that there
is a mechanism in the PH for delivering Touch attacks at a distance: Spectral Hand (2nd level spell). The range is Medium, which at its base is slightly better than a longbow. It lasts 1 minute/level. The spell can only deliver 4th level or lower touch spells.
In comparison, the Arcane Archer can imbue an arrow as many times per day as s/he wishes, without regard to the level of the spell, and could send these "touch" spells over longer distances (accepting the -2 per additional range increment penalty). Frost Giant closing in ? No problem ... Touch of Fatigue delivered at 400 ft. Orcish Cleric bothering you from the back of that horde ? No problem ... I'll just cast True Strike and BANG ! Touch of Idiocy delivered at 400 ft.
The ability, limited to area effect spells.allows things that already strike from SOME distance to be used from GREATER distance. Allowing Touch spells the same thing is grossly upping the value of the ability.