archer_guide

Sniper
-Concealment: LOLOP. 4/5 as soon as you unlock the category because leaves' tide evasion is really good. Don't bother with the last point, it's only a 3% increase in evade chance.
-Shadow Shot: I recommend leaving this at 1/5 and not bothering with it; if 3 turns isn't enough time for you to defuse a threat, you need to retreat. If you do want to use it, you need at least 3/5 in order for the cooldown reduction to be enough to matter, because almost all fights will end too quickly for 2/5 Shadow Shot to do the job. The confusion aspect is pretty useless and should be ignored for the most part; everything dangerous can be countered by Called Shotsor Sentinel and they are both more reliable than confusion.
-Aim: 5/5 fairly quickly, gives you more damage and doubles the travel speed of your arrows.
-Snipe: It is Block, lol. Block sucks. Don't use this. It is a waste of turn.

Agility
-Agile Defense: 5 this fairly quickly, but prioritize 2/5 Rapid Shot first.
-Vault: 1/5, would be an amazing mobility talent on another class, but Archer has lolescape so you will pretty much never use this.
-Bull Shot: 1/5, would be an amazing mobility talent on another class, but Archer has lolescape so you will pretty much never use this. Good for chasing Elandar!
-Rapid Shot: LOLOP. 2/5 ASAP, add more points when convenient. Don't underestimate the free turn gain, lategame you will only need like 46% of a turn(or less) to attack so getting 8% of a turn back every turn is a big deal. The movespeed bonus is relatively minor, but makes sure enemies barely ever get turns no matter you are doing.

Marksmanship
-Master Marksman: Your mastery talent, 5 ASAP obviously.
-First Blood: Gives you more marks, bleed, and stamina regen. Slightly useful so it's not completely a talent point tax, but we're really here for Trueshot. Leave it at 1/5.
-Flare: Pretty much useless except possibly against dreadmasters, as the guaranteed mark makes it easy to Headshot them. In practice, you have so much accuracy that you won't even need it for that. Leave this point tax at 1/5 and expect to never use it.
-Trueshot: LOLOLOPOPOP. Take this to 2/5 ASAP, and 4/5 fairly early. In the early and mid game you won't be quite uber enough, so you will want to wait a few rounds of combat before activating to get the most out of it. By the time you reach level 30, you should always be using this before you fire any arrows in combat, and unless you are fighting an Elite Boss or a large group, the fight should end before this buff runs out.

Reflexes
-Shoot Down: Talent point tax, but a useful one at least. Prevents your arrows from ever causing friendly fire, slows down all enemy projectiles, and can be activated to instantly shoot a projectile out of the sky(exploding projectiles will explode where they are). Handy for stopping Soul Rot and bullets/arrows from gunslingers/archers, but we're not here for this talent.
-Intuitive Shots: Massively massively nerfed, but still ridiculous. 2/5 is plenty, lategame when you have extra points maybe 4/5 if you want.
-Sentinel: LOL. 5/5. Lategame everything will die long before this cools down except maybe the final boss, so the only thing that matters is choosing the appropriate target. If there is any enemy with archer or summoner/oozemancer talents present, they are the appropriate target, since those are the only 3 enemies that aren't trivialized by Called Shots. If there are none of those around, use it on mages that can teleport you around or swap places with you, since you don't want that to happen and your silence shot isn't a perfect guarantee.
-Escape: LOL. 2/5 ASAP, that's more than enough to be better than any movement infusion you will ever find. Lategame you can add more points if you want.

Archery Prowess
-Headshot: LOL. 1/5 is more than enough for this talent to be dumb and overpowered. Lategame you will have extra points so you may as well 5 it.
-Volley: Waste of a mark if you are fighting anything dangerous and it can't make new marks, so this is purely a talent point tax. On the other hand, 90% of situations aren't dangerous LOL so at least this will help clear crowds of fodder a bit faster.
-Called Shots: LOL. 4/5 ASAP for the duration breakpoint. Pretty much trivializes any enemy that doesn't use mindpowers.
-Bullseye: This is kinda OP, but it will probably have to wait for all the really really OP stuff before you have spare points for it. Get it to 2/5 fairly soon, and 4/5 when you can.

Munitions
-Exotic Munitions: 2/5 ASAP. When you first unlock the cat, either use Venomous or Piercing. Once you get Alloyed Munitions never use anything but Piercing. Lategame you can put an extra point or two here if you like.
-Explosive Shot: 2/5 ASAP for the physical effect removal. Lategame you can put an extra point here if you want more AOE for clearing trash mobs.
-Enhanced Munitions: 2/5 ASAP. 3 turn duration may sound short but Archer plays the entire game in bullet-time so buff/debuff durations are effectively doubled.
-Alloyed Munitions: 2/5 ASAP, and if you were using Venomous before, never use it again once you get this talent. Lategame, this is a decent place for extra talent points.

Archery Training
-Earlygame, either 1/0/0/0 or 1/1/1/1.
-Lategame, either 5/0/0/0 or 5/1/1/1.

Combat Techniques
-If you are Shalore either ignore this category entirely or go 1/0/0/0.
-If you aren't Shalore, either go 1/1/1/5 or stop being stupid and pick Shalore.

Combat Veteran
-Ignore this category entirely.

Trapping
-Ignore this category entirely.

Combat Training
-Heavy Armor Training: 1/5 for dem sweet metal gloves
-Light Armor Training: 5/5, duh
-Combat Accuracy: I 5'd this every time just because but honestly you are maxing Dex and Headshot is stupid so you probably don't need to 5 it. Whatever, who cares.
-Thick Skin: Invest to taste, you are pretty much always getting PES so you will have enough CON to get 5/5 if you want.

Mobility
-Disengage: Not very good, and we have lolescape so you will pretty much never use this. 1/5 talent point tax.
-Evasion: Archer rares are pretty much the only thing that can kill you, and this will make it harder for them to kill you. Still not worth more than 1/5.
-Tumble: Decent mobility talent, but we have lolescape so you will pretty much never use this. 1/5.
-Trained Reactions: Duh. 3/5 is fine for most of the game, 5 it by endgame.

Conditioning
-Probably should just ignore this category, but if you do unlock it, go 1/5/0/0.

Survival
-Heightened Senses: 1/5, but you may want to put more points here just so you don't have to deal with the nonsense interface-screw of stealthed enemies (you have so much accuracy with Headshot that you will easily hit regardless, putting points here is just a Quality of Life thing so you don't have to right-click empty squares to find the stealthed guy).
-Device Mastery: 5/5 if you find items with good activated abilities, which is virtually guaranteed. But don't go more than 1/5 until you actually find those items.
-Track: 1/5 gives you all of the benefits of Track.
-Danger Sense: 1/5 just because a second save check is good, the returns on points after that are terrible so don't bother.