Tiril can attack C1 from below (from our room, not theirs) or take a big risk and try to kill the Warlock.
I suggest Sigurd runs to the upper corner.
Goran should attack the crowd as planned.
Cataviana should resurrect Reinheld. Death isn't as scary anymore, as there's not enough mana for anything else.
What do you think?
Added 21 minutes later
Okay, we'll do it this way:
Relhiras demonically attacks C14.
Tiril attacks C1 from below, on the left.
Goran stands above Sigurd and attacks C1, C2, C8, and C9.
Sigurd stands to the right of Alicia's corpse.