KROGAN GLADIATOR BAMF BUILD

BUILD:
Annihilation (Rank 6): Rank 4 – Radius, Rank 5 – Damage Attractor (20% all sources), Rank 6 – Draining field (30% shields for self and squad)

Nova (Rank 6): Rank 4 - Damage/Force, Rank 5 – Anti-Shield, Rank 6 – Shield Powered

Pull (Rank 1)

Offensive Biotics (Rank 6): Rank 4 – Damage/Force (+25%), Rank 5 – Expose (20% Debuff), Rank 6 – Biotic Warrior 

Rage (Rank 6): Rank 4 – Resilience, Rank 5 – Martial Arts, Rank 6 – Beserker

JUSTIFICATION:
This build does away with the 75% power recharge nerf/penalty of annihilation field by going with shield powered nova. In most pull maxed builds, you're waiting around for rank 6 pull and rank 1 nova to cool down or using level 3 power recharge consumables to make it bearable. It just drags you and your game down. Shield powered nova synergizes really well with Draining field from annihilation. This is how you're meant to play this character. Pull is a great power, but, it just does not synergize well with this character because of annihilation. You still have the 1 point utility of pull to pull random red bars close to you and hammer them on the head (could help you get enraged from time to time).

With this build, nova does 1317 damage points to red bars and armor, 1837 points of damage to shields within a 5 meter radius. With your radius evolution for annihilation, anything caught within its field restores 30% shields to yourself and your allies. This lets you use Nova again with no cooldown


WEAPON (Close-range play):– Ruzad w/Barrel/melee optimizer.
The Ruzad has 10% bonus melee damage built in. In addition, you're adding 33% with the melee optimizer.
The Ruzad does a base damage of 1312 per shot with 3 shots per clip. Only single shot sniper rifles like the Isharay and Widow outdo the Ruzad's damage per shot. In addition, you're boosting its damage by 17% with a level X barrel. You are boosting the Ruzad's damage by 40% more with annihilation's Rank 5 damage attractor and Rank 5 expose from offensive biotics. In addition you get a 15% damage boost for 3 seconds after biotic power use from biotic warrior. When you're fighting close range with this weapon, you're a savage demon krogan deathbringer.


EQUIPMENT: Adaptive war amp


PLAY STYLE:

This build combines a good mix of Ruzad shots, melee attacks and nova to bring serious pain to hordes and groups.  See two anointeds or observers hanging out together? Nova their asses, they will both lose their shields completely and get staggered from nova's force (pull ain't never gonna let you do such a wonderful thing to 2 shielded anointeds). Pop a couple of ruzad shots (one each) and get 60% of your shields back (Nova's at your disposal again with zero to negligible cooldown). Not only do you get your shields back, but after a coupla kills, you are in rage! Nova, melee, Ruzad, etc, go on a killing spree and confidently take down entire groups. Shielded foes and red bars will melt like butter with this build.

Light armored foes are piece of cake, but, for heavy duty armored foes (Beserkers twins, for instance), don't nova unless they're at the end of their lifespan. If you screw up and nova them right away, you'll end up fighting 2 amored beserkers who can stagger the living daylights outta you with zero shields. That's not gonna end well for you. Ensure rage first before you fight beserker twins and use your gun/melee instead. For gun/melee, don't forget that you do get that 40% damage attractor/expose bonus and a additional 15% gun/50% melee bonus from biotic warrior.  Get close, provide Ruzad pops to the face at point blank range and go to town whacking away with your hammer. That should take care of it. Be confident and enraged!  

With Patch 1.08, all kills by you (Melee, power and gun) will trigger rage. Once you're in rage, you don't have to worry about throwing yourself into the middle of a horde. But, do play more conservative, till you get enraged.
Any softer squad-mates who're clever enough to stick close to you will be getting 30% of their shields back constantly as you go on your killing spree.


Good luck & God bless.