javcs said:Eldritch Blast itself has no DC - it's a straight ray attack, no saves required, but some of the Essence Invocations require saves, I believe that you'd need to take SLA focus for each different Essence Invocation.
javcs said:Patlin
Precise Shot is always useful for an ranged attack specialist.
Just try saying that when you need every point of attack bonus you can get. Your extra damage won't help you when y'can't hit the target.
At the absolute best, your Dex is a 20, that's +5, BAB +2, and when within 30ft another +1. That's +7 and within 30ft +8. If the target is in melee, that drops to +3 and +4, respectively. Not that impressive, especially since the Party's range attack specialist scout type will have PBS and Precise Shot, so their attack bonuses will stay the same, +6 and +7, unless it's a ranger in which case it'll be +7 and +8, and the ranger will have rapid shot, if they're human, they'll have another feat, possibly manyshot, the non-ranger scout will have rapid shot too, which means even when they're shooting at the same target in melee as you, their attack bonus will be better even when using rapid shot/manyshot.
I should also point out that +3 and +4 are level one NPC ranges for attack bonuses. I could build, using the elite array, a human NPC warrior with a +4 and +5 attack bonus with their ranged weapon of choice. Dex 15 (+2), BAB +1, Weapon Focus(ranged weapon of choice) (+1), and Point Blank Shot (+1), that's +4 and +5 when within 30ft, the non-human drops either WF or PBS, it'd be a matter of preference, and their style/purpose. The guard on top of the 30ft high wall or 30ft up in a tower is going to go with WF, they'd rather have +1 all the time, the close-in ambusher will have PBS, they'd rather have +1 attack and +1 damge.
Patlin said:I agree it's usefull. Most feats are. I just don't think it's critical. An extra 2d6 damage much of the time is also usefull, and in my opinion more so. Consider:
Patlin said:You got me -- I always forget that gaining focus is a full round action till you get Psionic Meditation. That is, of course, the very next feat on my list.
Still, I think I can live with using the feat once per battle at levels 3, 4 and 5 to get the bonus on most attacks for levels 6 and up. Since you can't make a full attack with Eldritch basts anyway, that move action ought to get you something good on rounds where you don't need to move.
Patlin said:Good luck in your game, DungeonMaster!
SRD said:You can use Concentration to cast a spell, use a spell-like ability, or use a skill defensively, so as to avoid attacks of opportunity altogether. This doesn’t apply to other actions that might provoke attacks of opportunity.
The DC of the check is 15 (plus the spell’s level, if casting a spell or using a spell-like ability defensively). If the Concentration check succeeds, you may attempt the action normally without provoking any attacks of opportunity.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.