Severely wounded Karst attacks to finish the enemy before it can harm him, the axe swinging twice more after he takes a moment to call back his spell that slipped from his mind due to his wounds.

Casts Hunter's Mark

Attack 1 17 for 8 plus 5 for HM

Attack 2 10 for 11 plus 1 for HM

If attack 1 hits then smite with level 1 slot  for 10 radiant damage 

Wes continues scanning the field for another Nothic the send a fire bolt at.  Seeing Rycider in melee of one.  Sends it to help her.

Attack: 24 Damage: 15

Tanakir sheathes his greatsword and brings his hands together, letting out a wave of fire as he casts burning hands (DC 15 Dex save or 18 fire damage, half on successful save)

(OOC woah triple sixes! Nice.)

Aradurk moves in against the Nothic that has been the object of his attacks thus far and continues:

Attack: 23 Damage: 7

Shifting his hands slightly on the handle of the sword, Aradurk swings around to strike again across a horizontal plane:

Attack: 23 Damage: 9

Aradurk moves carefully to get his footing closer to one of his comrades to start taking advantage of his Sentinel reaction.

(OOC: Thanks! It's uh, a bit ironic that this character would be the one to get so lucky but it's still acceptable)

OOC: Applying Rycider's roll of 19 to an Athletics check, but it's the same modifier as Acrobatics, so the roll to shove the nothic prone is still a 21. She draws her second dagger with her interaction.

DM Screen:

Nothic Acrobatics: 22
Nothic DEX Save: 21
Nothic DEX Save: 19

Rycider CON Save: 8
Claws vs. Tanakir: 7
Claws vs. Tanakir: 12
Claws vs. Aradurk: 14
Claws vs. Aradurk: 23

Karst sends his axe upward, again tearing through the nothic with divine energy, up through its torso and into the base of its jaw, splitting its head open and dropping it.

Rycider spins through a nothic's legs, and accented with a burst of flame from Wes that strikes it dead center, sends the creature falling prone to the ground. It glares at the bard, locking eyes with her, and she feels a wave of energy suddenly pulling strength away from her, taking 14 necrotic damage.

Tanakir's cone of flame overtakes the nothic attacking him, burning it severely, and continues toward the nothic in back, which is able to dive away, suffering only light burns from the edge of the cone. In the process, Tanakir takes 6 and 4 slashing damage from the nothic's claws. The flame dissipates to show Aradurk following behind it, slicing twice into the creature's legs. His armor absorbs the creature's first response, but a claw rakes his arm, dealing 4 slashing damage.

Round 3 Order:
Players <=====
Nothics

Tracking:
Three nothics remain. All are wounded.
Rycider, Tanakir and Aradurk are each engaged in melee combat with a nothic.
Wes has bardic inspiration for 9 minutes and 54 seconds.

Two horrific claw wounds running across his chest and arm Karst roars as the Nothic collapses, the blade burning off the blood as the holy fire pulses along it. Throwing himself into the fray again the paladin attacks furiously against the creature knocked down by Rycinder.

Bonus action switch HM to this target

Attack 1 22 for 12 plus 1 HM

Attack 2 25 for 8 plus 5 HM

Edit:, wasn't sure if it was still prone and didn't roll with advantage but Karst doesn't need it, raaar! 

Tanakir quickly draws his greatsword and brings it across the chest of the nothic in front of him as the blade lights up with green fire/

Attack: 15 Damage: 13

If the attack hits, a nothic within 5 ft of the first takes 11 fire damage.

Aradurk closes his eyes, stretches his shoulders to their broadest arc, takes a deep breath - then exhales and swings at the nearest nothic:

Attack: 11 Damage: 12

Eager to see his blade excise the life form in front of him, Aradurk rapidly swings his long sword atop his opponent:

Attack: 17 Damage: 10

Taking aim at the Nothic that’s still engaged with Rycider.  Wes stretches his right arm out and pulls his left arm with wand in hand, close to his cheek like aiming a bow.  His wand turns green as he lets loose an Acid Arrow 

Attack: 26 Damage: 12

on hit the Nothic takes 4 damage at the end of its next turn.

He begins thinking continuing to test the telepathic connection “where are you going?”  He asks the beholder.

He ditches his cover to find the clearest route towards where the beholder went while maintaining a visual on the battlefield.

Rycider falls back on her side breathing heavily from both mental and physical assaults. She puts a hand to her chest and say Phiseakertis Healing Word at second level 8

She then readies herself for the next attack. Ready.

OOC: Moving Wes's acid arrow to Tanakir's target since Rycider's falls to Karst.

DM Screen:

Wes CON Save: 6
Claws vs. Aradurk: 13
Claws vs. Aradurk: 10

The beholder has exited the room leading to the vault into one of the parallel hallways that lead back to the staircase and window. It does not respond to Wes's questioning.

Karst cleaves through his target's arm, then into its chest, allowing Rycider time to back away and heal herself as her assailant falls to the paladin's wrath. 

Tanakir's sword lights up with green flame as it sears a line of crimson across another nothic's torso. A shining arrow of arcane force follows suit from Wes. It stumbles forward as the arrow begins to eat away at it from the inside, managing to stare angrily at Wes long enough to assail the gnome with arcane energy, dealing 12 necrotic damage. His strength fully sapped by the spell, he falls unconscious. The nothic turns its gaze to Tanakir, and the eye glazes over, lifeless,  and it falls, its midsection fully eaten away by the acid. 

Aradurk's target ducks his first high swing, but takes a heavy cut across its arm from the returning sword. With Aradurk pressing the advantage, the creature is unable to find an opening to sink its claws into.

Round 4 Order:
Players <=====
Nothic

Tracking:
One nothic remains, heavily wounded.
Aradurk is engaged in melee combat with the nothic.
Wes is unconscious and dying.
Wes has bardic inspiration for 9 minutes and 48 seconds.
Karst has Hunter's Mark active for 48 seconds.

Aradurk yells at the existing nothic in a guttural fury and unleashes his Orc temper through the sword:
Attack: 22 Damage: 13

"Someone get Wes help!"

Aradurk spits in Orc, "Show me your eye and I will pluck it, little foul beast!" and he swings down hard toward the creatures face.

Attack: 9 Damage: 8

Rycider scrambles over to Wes and commands Phiseakertis!

Healing Word at third level : 10

As the Nothic twitches and dies Karst looks around the room, seeing Aradurk well in control of the situation he asks Hoar to heal his wounds to allow him to carry on the fight.

Lay on Hands 25 hp restored.

"Fumbles, are you OK? Are you in control of yourself?" 

“I’m making a bad habit of this,  I should really quit.”  Petunia begins to lick the face of Rycider after she heals Wes.

Wes takes out his greater healing potion and downs it.  17

After the last Nothic is dead, Tanakir clasps a hand to his chest and empties the rest of his lay on hands to heal himself for 15.

"Now, you have your staffs, but what do we do with them?"

Aradurk slashes across the nothic, turning his sword to stab through its heart. Wrenching the sword free, the nothic falls.

"Of course," Fumbles answers Karst, placing the remainder of the staffs into his bag. "Excellent work, everyone. What we do with them, is get out of this tower. Any ideas? With the key pilfered, the front door isn't an option."

OOC: Each character has received 450 XP for defeating the nothics.

"Can we use those staffs to magic us away, can they do that sort of magic?" Karst asks whilst eyeing Fumbles carefully "Maybe more to the point, what about the big eyeball? Are we just letting him fly off?"