Just a few tips vs barbs as they seem to be the hardest class it seems, the skills noted below i dont always use 100%, all depends on the barbs gear/skills
This is only from a
Legacy set POVThis is not realy a what spec/skills to use, but more of a howto use some skills to maximum effect, since theres no 'one' pro build vs barbs
Hungering Arrow>Spray of TeethSuccessful Critical Hits cause a burst of bone to explode from the target, dealing 50% weapon damage to enemies in that area. <<This 50% aoe dmg hits the first target also, so IF you crit, another 50% crit will hit(basicly 172.5% weapon CRIT dmg)
Ive yet to test Evasive fire vs this skill, mostly because i feel ill lose the 'perks' that it gives, such as hitting them around the corner, but mostly because of the dmg is much higher when you crit, but also the same arrow has a chance to crit again if it peirces
This coupled with a quiver with HA dmg + SoJ with HA dmg can pack quiet a punch (I suggest a cold SoJ as its needed for the 'chase and kill' phase)
BroodingI use this vs barbs to pretty much negate thier rend dmg, this is one of the skills i cant play without vs barb, but to make to work effectivly you primarily need HP ~90k+ (res/armour etc will make this even stronger), so for example, if you have 100k hp, you will regen 1k hp per second, this makes non crit rend almost feel like it never hit
Impale>Chemical burnThe one big mistake i see used with this skill is people overwriting the crit DoT dmg. When you crit with your initial impale hit(you will see yellow numbers on impact), this will also apply a CRIT DoT, which almost does the same amount of damage as your initial hit, what i seen people do, and myself for that matter, is spam impale when its not needed (you can save that for later which ill explain later)
If you spam a second impale and its not a crit, it will overwrite the crit dot with a non crit dot, so you lose ALOT lose dps <this is hard to do if your not used to it but it becomes second nature after you can spot the dot dmg numbers
The best time to spam impale is when your going for the kill, this is usualy 1 sec AFTER their ignore pain skill has expired, what i genraly tend to do (IF im using sharpshooter - explained below) is when they pop ignore pain, just kite, and count 6 seconds in your head, soon as its over, its the GO FOR THE KILL phase, you should be close to 100% crit again, so try spam 2 impales and make them hit as they both impale shots will be 100% crits, also being the most dps.
Another tip is when chasing, the barb will probably weave in and out of walls, try use impale 0.5 sec before they dissapear out of line of sight, this way the dot will still be ticking when they are behind the walls
This is also the only phase where you can try to spam impale and hopefuly get those string of crits
Sharpshooter - passiveThis bonus is reset 1 seconds after you successfully critically hitreset
1 second after you crit is the key here, this means that providing you got more than 1 APS, your first two impales will be 100% crits(or any 2 skills for that matter), so always try to make sure you spam two shots of impale, this will add up to 2 crits + dot crit (265%+265%+220% dot crit - the first two depends if they dont dodge/block but the last 220% will always apply)
VaultThis is the hardest skill to master as its your main kiting tool vs barb and everyone thinks its easy to use but its the skill that sets the good from the bad. after ptr i dueled barbs and i just vaulted and tried not to get hit by skills till they rage quit the game
Theres another thing that most people dont know about vault, and its the exact same mechanic taken from World of Warcraft raiding. If you played WoW remeber it was always best to 'move' out of fire rather than 'jump' away? this is because when you jump away, the game still thinks your in your original position on the map UNTILL you 'land' and same mechanics apply to vault.
So basicly if a barb comes near you, and you vault, your body will still be next to the barb for 0.5 sec, even tho onscreen youve vaulted from him, and you will get hit by rend even tho you vaulted away, if you want to get out of range fast, use smokescreen as the passive tactical advantage will give you extra movement speed.
Thrill of the hunt - passiveOne thing to note is that barbs can both CHARGE and LEAP to break this effect, so only use it after they have used those skills
Thrill is counted a 'root' effect, these can be broken, however skills like impale>impact is a 'stun' effect, these cant be broken
Genral shit:
Timing skills
Its important to know the exact cooldowns of your opponents skills, ask your self the questions like, whats the cd on leap? whats the cd on charge? Also learn what the skill looks like
But what will set you apart is being able to time them. This is very alien when you first start practising it, as its hard to time in your head unless its less than 10 seconds, barbs ignore pain for example - soon as its popped, i take a quick peek as my clock, time 7 seconds in my head and then peek at my clock now and again to see when its exactly up again (basicly i add+30 sec to whatever is on the timer soon as they pop IP), i suggest using a digital clock on your desk which shows seconds.
All above applies to all of your opponents, especially learn thier defensive CD's such as Dh>prep or Monk>near Death Experince