That monster's words were beyond sickening to Hakuno, who visibly shuddered when Kiara responded to her bluff. The implications to her words, her tone, did not bare thinking about. Still, the situation remained dire for them. The real Kiara could only defend, Saber was cut off from them by those barriers, and neither she nor Jason were anywhere near strong enough to fight the evil Kiara. The chances of backup saving them were slim, too... damn it, why couldn't she think of anything to help?! What was the point of joining the CCF if she couldn't handle a threat like this?!
Jason was trying to assign no value to his life, to give them some chance of victory, but that was unacceptable! Mary had already been killed by that monster, and Hakuno could never forgive herself if she had to sacrifice Jason to put a stop to her. She cast a glance towards her entrapped Servant, who had sheathed her weapon and produced... a box? Puzzled, she watched Benienma mime her actions, almost calling out to ask Saber what she had planned, and quickly bit her lip. Discretion. Right now, the darker Kiara was preoccupied with her gloating and poisoned taunts. She had no reason to worry about Hakuno or Saber, so why pay attention, right? And...
Nervously, Hakuno approached Benienma, keeping her eyes on their opponent, hand outstretched behind her. The young magus found her hand passing harmlessly through the barrier. Of course, this was meant to seal away spirits, wasn't it? Which meant Hakuno herself was unaffected! Still, what was throwi8ng a box supposed to do?
Ah, why question it? It was Saber's idea, so it was probably some sort of Noble Phantasm! Or just a really sturdy box for clobbering the evil Kiara's brains in. As long as it worked, she was more than happy to try it. With an affirmative nod to her Servant, Hakuno carefully raised the box, calculating the trajectory as well as she could manage. No need to panic, it was just a single throw that may or may not decide how horrifically this battle would end. What was the big deal, there?
Hakuno inhaled, wound her arm back... and launched the box with all her might.
Berserker - "Guan Yu"
Ah... the sounds of battle picked up outside the arena. Guan gripped her frozen blade tightly, glaring at the direction of the sound. She made to follow the knights, but was stopped by the call of her Master. Surprised, the Berserker turned her head to the smaller girl, who stood on shaking legs, her expression resolute.
"Berserker, calm down!"
"...? Master, I-"
"You need to think clearly, before you go fight again!" the Master continued. She was aware that Guan was struggling to keep her anger in check, and she didn't want her Servant to go on a rampage. She hated the idea of Guan being influenced by Mad Enhancement to begin with, but whatever awaited them, she didn't think it was a good idea to let her Servant loose when allies were nearby. Berserkers were a tad too unpredictable when consumed by madness.
"I'm safe now, and you're fighting alongside some of the greatest knights in history!" she affirmed with a gentle smile, "so keep that in mind if you want to fight! I know you won't let anyone get past you!"
The icy spectre did not reply, and after a moment, simply followed after the knights. Beneath her helmet, Guan was smiling to herself. She was lucky to have such a Master, wasn't she? The Berserker would make sure to protect her!
And so, when she stepped outside and assessed what was going on, Guan quickly thought through her options. Joining the melee could be a bit too chaotic, and if she weren't careful, she could seriously hurt someone. The 'enemies' were supposed to be allies, after all. She had to do something to help, though...
Turning her attention to the floating figure raining spells from above, Guan raised her guandao, still coated with frozen blood. All she had to do was knock the Servant off-balance, and trust in the others to quickly subdue the rest of the controlled Servants!
"Frost Fair Blade."
The accumulated blood immediately shattered free of the ice binding it to the blade, extending towards the flying target with blinding speed! Whether they dodged, or failed to notice and was struck in a non-vital area, Guan's objective would be complete.