The ethereal marilith gestures and is surrounded by an unholy aura of darkness and then casts a spell that covers it in profane symbols that are painful to look upon.
Sanctus moves to where Valliance,Nyvonne and Valliance's Cohort can all be caught in the area of effect (best position possible) and casts Holy Aura on each of them and himself.
Valliance moves into position and makes a single attack on the remaining Marilith hitting it for 31 points of damange.
Nyvonne moves into flanking positon and launches a full out attack routine but each and every blow bounces of an invisible field of force. (There is nowhere you could have flanked from and not been affected before you ask)
Arkin moves into position and raises the massive sword Storm Reaver he manages to land one mighty blow on the Marilith for 70 points of damage.
But the Abyssal creature stands through the blow and with a fiendish delight on its face turns its blades on Valliance and in a whirling veil of steel slays the noble barbarian (-35 hit points to be exact) but it is blinded by Sanctus's Holy Aura as it strikes and it misses 2 of its attacks because of this, it turns its final attack on the Storm Giant, missing. The marilith is obviously badly wounded on the brink of death, in its feral passion for destruction it has sacrificed itself to destroy a hated foe.
(New Round)
(Rathan you're full out attack bonus is wrong by my calculations you have a BAB of 15/10/5 and a total attack series of 45/40/35. Also your Damage is wrong it should be 4d8+54+1d6 + (1d8 Crit))