Rainbow

"Tempting as the offer of bigger assets is, I think I'll have to, respectfully, ask you to go fuck yourself, which you'd probably do anyway." Lilith pulled a melta bomb off her belt, cooking the timer for a couple seconds as she unloaded a burst from one of her pistols before hurling the explosive at the Euphorian. "Let Slaanesh deepthroat this one!" She cackled, grabbing Aviza in an inhumanly strong grip and dragging the Sororitas from the blast radius. 

*

Rithy

A malicious glint gleamed in Lucia's purple eyes as the pandemonium ensued all around her, the valkyrie completely decimating one of the walls and Lilith hurling a melta bomb towards her.

"Awww, that's a pity... " Lucia spoke in a mocking, sultry tone as she entered her battle pose. 

As she did, the cape of tendrils flowing down her back would flare out as if sparked to life, and the dark, shadowy mist exhuming from her warped power armor would increase in intensity, making the Euphorian appear more like a blur, a shadowy mist of a vaguely feminine shape as she moved about.

The only constant, clear feature of the blur of shadows and tendrils as Lucia moved about would be the unholy artifact seated in her chest, its demonic eye staring straight at them with an intensity that immediately began to cloud their minds as if a heavy migraine was building from out of nowhere.

The shadows from Lilith's gun seemed to pass through the expanded, vague shadowy figure of Lucia as if she was made of mist, although one of the rounds made an audible 'clink' as if they hit an armored plate.

As the Melta bomb from Lilith was coming closer to the blurred shadowy figure of Lucia, the Euphorian would step to the side; surprisingly agile in her light power armor. But as she did, one of the tendrils flowing from her fleshy cloak would lash out against the incoming bomb like a whip, hitting it mid air and pushing it away from her instead.

As the bomb exploded, now at a greater distance from Lucia, the sheer white flash of it was still enough to create a shockwave of heat that seemed to temporarily distort the shadows surrounding Lucia for a second, the euphorian appearing in her normal humanoid shape; before the shadows emanating from her cursed armor quickly reformed themselves and she once again became a blur of black and purple mist.

Now moving, Lucia would move like a laughing ghost towards Aviza.

As she came closer, a faint murmur could be heard from further up in the great ball room, before a set of blackened, spiked chains suddenly materialized around Avize and tightened, holding her in place!

As soon as they had closed around her, Lucia passed her by, swiping out with her demonblade!
It struck through the chains and into the side of Aviza's powered armor, cutting through it with surprising ease and let a surface gash across her side! 

"Come, dance with me, sister! Let's become the main attraction of this night!" Lucia laughed out at Aviza as her shadowy figure repositioned itself, as if coming in for another strike!