Rubies
Ruby grids depend on your talent build.
Callibration r3 (New ruby)
Your shots (astral, acid, lighting, fire) have a 12 % higher chance to deal critical damage.Must have this one
! What else to say ...
Movement detectors (New ruby)
The target of Steel mosquitos recives xx lighting damage and slows down by 50 % for xx seconds if the effect fades because of target's movement.
Can be useful for pvp.
Vacuum Trap (New ruby)
When reachs the target,steel trap draws and knocks down all enemies within a 4 yards radius. Very useful rubie for massive pvp but not for pve.
And i didnt took this one for any of my builds, its just too far and i dont have more rubies.
My rubies
Boiling point / Rank 3
Acid and astral shots/volleys deal 12 % more damage.
Crystallizing Point / Rank 3
Fire and lighting shots deal 12 % more damage.
Steady hand / Rank 3
Shots consumes 30 % less energy.
Deus ex machina / Rank 3
All holy spells have 12 % higher chance to deal critical damage.
Canonade / Rank 2
Every fifth acid and fire shot grants you cannonade effect that lasts for 6 seconds. While this effect is active all lighting and astral shots consume 60% less energy.
Projectiles / Rank 4
Frag bomb explosion makes enemies vulnerable to your volleys and applies stacks of projectiles. Each volley deals xx more damage and removes one stack of projectile effect. I prefer to use Frag Bomb before my shots because of this rubies.
Explosives / Rank 3
Frag bombs deals 30 % more damage.
Bombardier / Rank 3
All bombs range increase by 60 %.Their throwing time decreases by 100 %.
Synthesis / Rank 3
Astral and lighting shots decrease cool-down duration of frag bomb.by 3.9 and 2.7 seconds - you can use Frag bomb often.
Elemental hazard / Rank 3
Natural damage increases by 12 %
Secondary damage / Rank 3
Damage and radius of bomb explosion increased by 30 %
Valve adjustment / Rank 3
Burst of mana deals more damage in travel mode, in combat mode stun an slow last longer.
Second Class Engineer / Rank 1-5
All attacking devices deal xx % more damage. Efficiency of all defensive devices increase by xx %. My current rank is 3,i don't have more spare rubies to invest them, but if you have some would be nice to take higher rank.
Adrenalin
Increases maximum health by 15 % plus additional 15 % for each party member in a 100 yards range - Buff your tank
Vulnerability Check / Rank 2
Steel mosquitoes,light turret and flame turret deal critical damage 10 % more often.
Death machines / Rank 3
Steel mosquitoes, light turret and flame turret deal 21 % more damage.
Good job / Rank 3
Your proficiency increases by 9.
Realist / Rank 1-3
Your vitality increases by 3/6/9
Brainiac / Rank 3
Vigor increases by 9 %
Variable polarity / Rank 3
Each heating shot has a chance to make your target vulnerable to one of the cooling shots,and vice versa. Deals xx extra damage.Stacks up to 3 times.
Example
Easy Target / Rank 2
Engineer selects one of the enemies as the main target for the allies and increase your damage 100 % - 15 seconds, or 5 % or total targets health, not 10 % like rubie description says. Very useful for raid bosses, and all long fights.
All those rubies are very important for damage boost. As you can see a lot of them increases stats too, which are also very important. And few of them are only for support. Without those rubies you cant deal max damage.
Rotations
My spell rotation depend mostly from situation. But i always attack with my Frag Bomb, then shots. I already explained rubies so that is it.
Single Target / Raid - astral boss
-> -> -> ->
-> ->
+
Why this rotation?
Overload allows me to use turret and steel mosquitos in same time, mosquitos is second one because cooldown will be 15 seconds for both.
Frag bomb to activate projectiles effect.
Spam fire + acid shot to activate your canonade effect, in my case 5x fire or acid.
Astral shot 2-3x depend how fast you are. Your astral shot will activate at least 1 stack of vulnerable polarity,then you can hit with lightning shot, or combine lightning with astral shot, depend on your energy.
Use frag bomb when is out of cool down, shots will deal more damage with this effect.
Multi target rotation
->
->
->
->
->
Neurogas to increase damage by 20 %
Frag bomb for projectiles effect.
Firethrowing turret only for heating reactor - 100 degrees.
Acid and astral shot for overheating reactor about 200 degrees. Overheating is very important for burst of mana and periodic damage.
And final spell burst of mana. Stacks of periodic damage depend on your reactor temperature,higher temperature - more stacks.
Reincarnation
Every reincarnation spell can be useful for different situations, but my favorite reincarnations are :
Scout
Very useful for pvp.
Psionicist
Can be used for pvp/pve. You can pull some targets inside the area of Neurogas. Very nice spell.
That is all what you should know about engineer pve spec.
Update : PVP build
Since some players are asking me for my pvp build, on fourm, and in game. I decide to post my pvp build.
So, you can create many different builds for pvp, its all about you, what you need and what you prefer.
I cant reset my pvp build for each fight, since we are paying talent reset with gold. So this is what i am using mostly for all fights. Like dominion, skirmishes and even 1 vs 1 with my friends. It's similar to my pve build, but if you take a look, you will see that i took more defensive rubies, and maxed my defibrillation stun. Pvp isnt all about high dmg in my opinion. It's more about stun's + defense. Your damage isnt that important if you cant survive a little bit longer.
logic
And you should know that engineer cant survive long fights. But i am sure melee class will hate fights vs engineer
I would love to take that new rubie Movement detectors for my build, but i dont have 3 more rubies, that rubie can help a lot in pvp.
Rotation is similar to pve. And yes i using Combat mode in pvp, because of shots. There is no perfect rotation for this build, you should pay attention on each talent and decide which one is the best for each class. If you ever decide to create own build for pvp, before you do that, read everything about every other class, try to figure everything positive and negative about other classes. I am sure if you do that, you will be more succesfull and very good pvp player. All those information you can find on our forum, a lot of players posted their builds and explained everything, dont be lazy, take a look !
Each fight asking for different rotation, depend is that summoner,warden or any other class... If you want to find perfect rotation, then fight every day, PRACTICE !
Rubies for my PVP build
Bronze frame / Rank 3
Increases armor by 15 %...take it !
Contour Overload / Rank 3
Under emergency revival kit effect all incoming damage reduce by 45 %, enemies within 7 yards radius recive xx damage. Very high damage,great ruby for pvp. Even if you are going to die, you can deal very high damage to enemies.
Direct Current / Rank 3
Defibrillation stun lasts 100 % longer. Reduce cooldown and damage by 33%. Rubies for the best engineer's stun. Without this rubie your stun isnt that much useful and cd is higher. So its logic to take this one for pvp.
Shock wave / Rank 3
100 % chance to knock down all targets in the frag bomb's area damage.
Use those rubies only for pvp, nothing else.