Quite frankly, ranged damage is "meh" at best when not manyshotting, so I just came up with a little Idea to buff it up a bit
Arcane Archer II
Cost: 2 AP
Level Requirement: 12 ranger, 14 elf, 14 half elf
Feat/enhancement Requirement: Arcane Archer I, Improved Concentration II, Manyshot, Precise shot and Requires one of: Maximize, Improved Mental Toughness, Improved Precise shot, Skill Focus: Spot
Description: You have done much training in the art of archery, by selecting this enhancement, your manyshot timer is decreased by 25%, and you have a new stacking imbue depending on your class.
I was thinking each mana using class can have its own imbue to add some variety and a little bit of fun to Multiclasses;
Ranger: Allows you to imbue your arrows with 1d8 Bane damage, 2d8 Bane damage against favored enemies.
Cleric/Favored Soul/Paladin: Allows you to imbue your arrows with 1d8 Light damage, 2d8 Light damage if you have a PrE from one of these classes.
Wizard/Sorcerer: Allows you to imbue your arrows with 1d8 Force damage, 2d8 Force damage if you have a PrE from one of these classes. (would stack with imbue force/burst)
Bard Allows you to imbue your arrows with 1d8 Sonic damage, 2d8 Sonic damage if you have a PrE from one of these classes.
This was just a little idea, so feel free to add suggestions or tear it apart. Thanks