With the mods installed like this, you end up with a initial maim cost of 12.5 mana.
And a drain of 0.88 mana per second to keep it up.
And a drain of 2.5 vor provoke/pacify.
So in total a cost of 3.32 mana per second for non stop damage and damage reduction/or abilitie power boost.

With a range of 42.5 you hit everything in the room and in the ones nextdoor.
Since ability power only works on the initial slash damage from maim and not on the periodic damage, You save quite some room here that gets used for defense and/or utility.

When hit [Adaptation] gives 10% resistance to that damage type and this stacks up to 90%
[Rage] turns 40% of the damage to your healthbar into energy. Which gives us more damage or heals if needed.
And [Augur Reach] turns 40% of the energy you use on your abilities into shield. And gives an extra 30% [Reach].

When played well solo or in group, this gives you a unstoppable damage dealer,
who turns received damage into more energy, her own energy into shields and keeps the rest of the team healed and buffed and the enemies nerged.

The build was made here like I wore it at the time. Afcours primed and whatnot mods are better.
Just wanted a build I could use now, before I have tons of the fancy stuff and this seems to do it for me.

When in a larger group or in need of something else then damage.
You can swap flow and overextender for Energy transfer and peacefull provocation.

Not the cheapest build forma-wise, but I run several builds on the same modgrid, so this one works for whatever for me.

Questions or remarks drop em in the comments and I'll try and get back to you asap.

Have fun and enjoy!