I need a maven carry for the achievement. I need to stay inside the fight.

I have been trying the fight and wasting up to 4ex in keys but i can't beat the maven.
Any help i will pay with an exalted.

I need to stay inside the fight for the achievement so the boss will have 100% more life and you will have 5 portals to complete the combat.

Thanks anyways!

ign: Dorian_Electra