Updated and More Betterer!
That Feat from Dragon would be a bit unbalanced for the ArcArch -- remember that the boost in Attack is balanced by the wizard's lame BAB, while the ArcArch has a primo BAB.
Anyway, I've re-worked the Imbue Arrows power. Now, you can choose Alignment Trait (Good, Evil, Lawful, Chaotic) for a basic Effect, and then the higher-level Enhance Effect class feature lets you upgrade them to Holy, Unholy, Anarchic, or Axiomatic -- along with making such powers as Flaming Burst contingent upon already having the Flaming effect.
So, I think it's more organic and consistant, and will please Zad (who writes one of my favorite Story Hours
).
To preserve the total enhancement bonus of the ArcArch, I've also added a second "Enhance Effect" at 10th level.
Seasong: IMHO, this class would be okay for a Bladesinger, but I'd require Bard spellcasting, and give advancement in Bard spellcasting instead of Wizard or Sorcerer. The "Arcane Shot" would be better for a Bard, since they're low on direct-damage spells, but they'd also be allowed to cast spells in light armor -- a key prereq for the Bladesinger IMHO, who's supposed to have shiny magic Elven Chain in pretty colors. Also, I'd probably allow some sort of Bard Song advancement, since Bard's spellcasting advancement is weaker than Wiz or Sorc spellcasting.
As to Dwarven Clerical Hammer of God PrC, you'd have to change the name of "Arcane Shot" to "Smite Conversion". Also, add some sort of ritual to attune your chosen hammer (like Monte Cook's Mage Blade class).
Zad: I'll bet Kayleigh wouldn't mind a bow with Bane(Undead), Bane (Evil Outsiders), Holy and Ghost Touch effects.
-- N