The Tales of the Fellowship of the White Cloaks

Kazri wipes the blood off her nose, gets up and engages the floating skull. "Enough of your howls, whatever you are." She raises her sword high and it shines brightly. (Divine Smite 3rd level). (Dice rolls off Game Log)

Attack 1: 16. Damage:  13

Attack 2: 22. Damage: 9

(If any attack hits, it deals extra 18 radiant damage, and 21 radiant damage if the target is Undead)

Reaction: To taking damage from Irolithias, Casting (2nd level)[Tooltip Not Found] on Irolithias. Dex Save(DC 16) to take half of 14 of Fire Damage.

"Will tr--Gah!! Damnable cur!" Rhogar snarled at the nothic, but had barely turned to do so before feeling strength rapidly leave his limbs and all but bring him to his knees. Through gritted teeth and with arms still shaky from the sudden loss, Rhogar yet pointed at Irorlithas and barked out a sharp rebuke in celestial, causing the space near the skull to erupt with blue-white flames.

"Agreed, Krom! May the Breath of the Divine be your end!" Declared the dragonborn as he took a deep breath, before exhale a great bolt of lightning straight through skull and nothic after combat rolling to a better position. As he did so, more of his wounds begin to crackle with electricity as they rapidly regenerate even further.

Bonus Action: Healing Light (2 of 6 remaining) to self, restoring 18 Hp.
(if Kazri went down prior to his turn, he'll give it to her. In which case, instead of max healing it'll be 17.)

Movement: Reposition to the immediate north-east of Nothic.

Action: Cast (3rd level)Lightning Bolt through Nothic and Irolithias. Dex Save(DC 16) to take half of 25 Lightning Damage.
(if possible. If not, he'd stay in his original position and focus lightning bolt at Iro)

Movement(remaining): Return to original position.

OR(If by some miracle the Kazri defeats/incapacitates Irolithias before Rhogar's turn)

Bonus Action: Remains the same with the same conditions as above.

Action: Unleash Enervating Breath on the Magen's and one of the flesh golems. Con Save(DC 15) or gain the incapacitated until the start of Rhogar's next turn. 
(If he has to reposition a little to avoid catching allies in the 15ft cone for the breath weapon, he will do so. Then spend any remaining movement to get back to his original position or close to it)

Kazri's first strike misses but the second lands. She feeds the attack with divine energy though she sees that it is not as effective as it could have been.

Iro Dex save DC 16 18

Nothic Dex save DC 16 15

Iro Dex save DC 16 6

Irolithias cackles as the lightning seems to have no effect on him.

Galvan 1 DC 15 Wis saving throw for Spirit Guardians 15

Flesh golem 1 DC 15 Wis saving throw for Spirit Guardians 12

Flesh Golem 2 DC 15 Wis saving throw for Spirit Guardians 20

Galvan 1 moves forward and attacks Kazri, reaching out to touch her with a shocking touch

Attack: 20 Damage: 5

Attack: 21 Damage: 5

Galvan 2 moves forward and attacks Rhogar, reaching out to touch her with a shocking touch

Attack: 10 Damage: 7

Attack: 25 Damage: 8

Golem 1 moves forward and attacks Chill trying to slam him with its fists

Attack: 9 Damage: 10

Attack: 22 Damage: 15

Golem 2 moves forward and attacks Kazri trying to slam her with its fists

Attack: 18 Damage: 18

Attack: 12 Damage: 9

Chill is up

Chill, Nothic3, Krom, Iriolarthas, Kazri, Rhogar, Gaven1, Gaven2, Golem1, Golem2

PC's all have Bless 4 more rounds

Chill takes the punch to his chest and the wind gets knocked out of him for a moment. He was too close to the fighting, this wasn't where his skills shined.

He reacts (skirmisher) to the golem standing over him and dances back out of the way by moving to the left and then diagonally down away from the melee to the spot at the top of the stairs.

He takes Steady Aim and fires at the golem attacking Kazri.

From game log

29 to hit

30 damage

Chill hits

Nothic Wis save DC 15 Spirit Guardians 17

The remaining Nothic slashes at Rhogar again.

Attack: 17 Damage: 7

Attack: 17 Damage: 5

Krom is up

Oops I guess the Nothic didn't need a save for Spirit Guardians.

Krom readies his flaming warhammer and closes the distance between himself and the archmage. As he charges forward, the dwarf chants a hymn of evocation, conjuring a shimmering maul beside Iriolarthas.“Abomination! Your end is nigh!” Krom shouts, swinging his hammer in a powerful arc, aiming to crush the floating skull. At the same instant, the spectral maul mirrors his strike, crashing down with equal fury.
All around them, the ancestral dwarves renew their relentless assault, their ghostly axes and hammers rising and falling against the Fellowship’s foes in a storm of divine wrath.

Movement: 5ft est next to Kazri (in order to be in melee range with Iriolarthas)
Attack: Flaming Warhammer 16 to hit - 9 magical damage + 4 fire damage (Game Log) against Iriolarthas
Bonus action: Spiritual weapon at 4th level 15 to hit - 12 force damage (Game Log) against Iriolarthas
Ongoing spell: Spirit guardians against all foes  - 11 radiant damage (Game Log) DC 15 Wis
Reaction: Interception(if Kazri is hit by 1 attack) blocks 13 points of damage (Game Log)

Game Log:

Wisdom save DC 15 - 29

Both of Krom's attacks miss Iriolarthas.  Iriolarthas again howls, the sound echoing around the chamber. 

Everyone must succeed on a DC 15 Constitution saving throw or drop to 0 hit points. On a successful save, the creature is frightened until the end of its next turn. Krom, Kazri and Rhogar can't be frightened.

All monsters pass the DC 15 Con save and do not appear to be frightened (game log)

Iriolarthas then floats 5 feet away from the edge and out of melee range.

Kazri and Krom can both use their reaction for an Opportunity Attack IF they survive the howl

Kazri and then Rhogar are up

Chill, Nothic3, Krom, Iriolarthas, Kazri, Rhogar, Gaven1, Gaven2, Golem1, Golem2

PC's all have Bless 4 more rounds

Rhogar Con Save(DC 15): 13. 
(if failed by 4 or less, expending Favored by the gods to add: 5)

(Kazri CON Save: 26)

Kazri slashes at the escaping skull.

Attack of Opportunity: 26 to hit, 12 slashing damage.

(@DM. I just remembered that Kazri has the Slasher feat. "Once per turn when you hit a creature with an attack that deals slashing damage, you can reduce the speed of the target by 10 feet until the start of your next turn." Does that makes a difference?)

Con save. A very disappointing ... 5

I forgot bless but it won't help.

"Not so fast!" Krom shouts striking at the skull as it floats away

Con save: 16 total (10+3 bless +3 from Kazri's aura...)

I'll change my reaction from Interception to Attack of Opportunity 23 to hit for 13 damage (3 fire)

Rhogar hissed in pain when struck, but bit back the urge for another fiery retort. That honor he preserved for Iriolarthas! Or so he first hoped. However...

 "What!? Chill!" The dragonborn called out as the Tabaxi falls. He then shoots Iriorlathas a glare. "Damnable cur! We /will/ see you silenced!" Rhogar's eyes appear to become subsumed in electricity alongside the vow, before barking out a word of power that would jump start Chill's heart once more and further invigorate Kazri. Then from his hands Rhogar whipped out whips made out of pure electricity that would latch onto both Nothic and Iriolathas alike and threaten to pull them in closer to Rhogar, before dissipating into a deadly shower of sparks for the pair.

 Bonus Action: Twinned(1sp) cast (1st level)Hlal's Laughter on Chill and Kazri, restoring 6 HP.

Action: Twinned(1sp) cast (Cantrip)Grasp of the Storm Lord on Irolarthas and Nothic. Strength Save(DC 15) or be pulled within 10ft of Rhogar. And if within 5ft of him, take 6 Lightning Damage.

Kazri and Krom both strike out at Iriolarthas as the demilich tries to fly out of reach.  Kazri also tries to slow it down but not enough to keep it from moving away.  Both attacks hit.

Kazri, still need your action for your turn

Kazri is miffed that the floating skull got away and it is out of her reach. "Fine." She considers her options and decides to help her colleagues eliminate the other threats. She turns around and attacks Golem2. She will take her frustration on the construct. First she slams her shield to knock Golem2 prone. (STR/DEX save DC 17), then slashes it twice.

Attack1: 26 (16 if with adv) Damage: 13

Attack2: 21 (11 if with adv) Damage: 10

The golem is strong enough to not get knocked down but both of Kazri's strikes hit.  Rhogar brings Chill back, feeding some life into him and Kazri. He also strikes both the Nothic and Iriolarthas dragging the demilich close to him.

In reaction to Rhogar's Grasp of the Storm Lord the demilich magically swirls its dusty remains.

Everyone but Chill must succeed on a DC 15 Constitution saving throw or be blinded until the end of the demilich’s next turn. A creature that succeeds on the saving throw is immune to this effect until the end of the demilich’s next turn.

Galvan2 blinded

I'll wait for your rolls before the monster attacks.

Chill, Nothic3, Krom, Iriolarthas, Kazri, Rhogar, Galvan1, Galvan2 (blind), Golem1, Golem2

PC's all have Bless 4 more rounds

Rhogar Con Save(DC 15): 30. 

Krom Con Save (DC 15): 30 + Bless 1