Class : Biological

Attribute Points : Half in speed, half in vitality. (You can change this and try doing more damage and having less hit points or via versa, though I find it easiest to play when the points are distributed equally).

Ability Tree :

Vicious Strike 4/4 (can be altered with slash, but I prefer Vicious Strike)
Integrity 4/4
Savagery 4/4
Sharp Senses 4/4
Shadow Blend 4/4
Evolution 3/3

Unused AP can be spend variously, my recommendations would be Brake, Disrupt, Subversion or Endurance.

Combat Action Bar :

2x Sharp Senses
2x Vicious Strike
1x Shadow Blend
3x Unused Slot

You can place various skills to your liking in the 3 unused slots to your liking, I prefer Leading Strike if your Integrity is lower than 4/4, Brake for monsters that pump them self's up for the next turn and Disrupt for healers.

The Order of AP spend is not important, though for this build to work at any time you must have Sharp Senses (at least 1/4), Shadow Blend (4/4 preferred) and Vicious Strike (4/4 preferred).

Gear : The thing you need from items the most is physical piercing, the second most important thing is speed, the third is vitality and the fourth is strength.

How to combat?

1 turn : Use Sharp Senses on self
2 turn : Use Shadow Blend on self
3 turn : Attack with Vicious Strike

After this 3 turn combo, use Sharp Senses again and attack with Vicious Strike until Shadow Blend CD is off.

At level 13 this build does up to 2000 damage self healing attack

The trick is that you multiply your speed attribute by 4, then your piercing is increased by 120%, the next turn your strength and multiplied speed are again multiplied by 1.4 and put together. Then all your piercing from the items and passive damage and stat increasing abilities come in and you do an insane high damage, life draining, 100% critical attack.

Thank you for reading my guide. If there is any incorrect information in it please correct me. If you have suggestions for alterations I'll be happy to listen and if you find a more powerful Biological class build please inform me.

Edit

I improved this build a little bit, but it is a minor improvement.

First, the Vicious Strike can be changed with Slash, but this change is only more effective when fighting high hit point bosses with a full party or other players.

Second, when you start the combat, your major damage output comes out in the third and fourth turns.

1 turn - Sharp Senses
2 turn - Shadow Blend
3 turn - Vicious Strike or Slash
4 turn - Vicious Strike or Slash

But there is a chance, that you will not survive for 4 turns, there for I thought of an equally powerful attack combination in 3 turns, so you could kill the first enemy party member faster.

This 3 turn major damage output combo will cost you only 4 ability points.

Predator Form 1/1
Agile Exposure 3/3

With Agile Exposure implemented the combat should look like this :

1 turn - Shadow Blend
2 turn - Agile Exposure
3 turn - Vicious Strike or Slash

With this change the combat action bar should look like this :

2x Vicious Strike or Slash
2x Sharp Senses
2x Agile Exposure
1x Shadow Blend
1x Unused Slot

Don't worry about Agile Exposure missing, because in Shadow Blend you have at least a 95% chance to hit with it.

This 3 turn combo is used to take out low hit point enemy party members that deal massive damage, for example Blood Hound in zone 5.

And with pvp this 3 turn combination is really great, because first turn Shadow Blend gives you a high possibility of dodging the opponents first attack.

In the unused combat action bar slot I use Subversion. It doesn't cost any focus, and it is a self and other life saving move. In situations where Veradux is killed and Sonny with the other party member has to kill the left monsters the Subversion is the main surviving and healing skill. Without that it is also a 1 turn 100% perfect defence and it helps with major constant enemy healing.