Katernin: 18
√ Ogmund: 17
√ Molo: 13
√ Ozymandius (Yellow Robe guy to SE): 12
√ Cards Woman and two other new arrivals: 10
   Dain: 8
√ Kelnan: 7
   Swordsman with short bow (NW): 8 
   Three crossbowmen (incl woman with white hair): 7
   Robed figure in red (NE): 5
   Fianna: 4

Katernin and Dain (via proxy) are up next!

(Error in map scale fixed - sorry!)

Dain:

     The Mountain Dwarf grumbles and climbs back to his feet, ensuring he has a nice solid two handed grip on his maul while he does. Dain then lets loose a Barbarian Yawp and swings Recklessly twice at the spearman...

Maul Attack: 26 Damage: 10

Maul Attack: 8 Damage: 13

Plus 3 Divine Fury radiant damage on first hit... if either do.

Dain glances another wild blow off the tough spearman, but a second blow is blocked. The spearman is bruised and bloody and looking ragged, but he does not even pause.

The swordsman with the bow in the northeast mutters an arcane word directed at Dain. "Sleepy," he mutters. (26)
Dain crumples to the ground, unconscious. "Get the casters! Protect the priest!" he shouts

The three crossbowmen hop over and around Dain's prone body and take shots at Fianna and Kelnan before standing in front of Ozymandius in a protective stance.

Crossbowman #1 vs Fianna: Heavy Crossbow Attack: 6  Hit: 2 piercing damage.
Crossbowman #2 vs Fianna: Heavy Crossbow Attack: 19  Hit: 10 piercing damage.
Crossbowman #3 vs Kelnan: Heavy Crossbow Attack: 5  Hit: 8 piercing damage. 

Fianna takes a nasty hit from a bolt; the other two fly wide. 

The robed man in red conjures a glowing, spectral blade in the air, and prepares to remotely swing it.

Fianna and Katernin are up!

   Katernin: 18
√ Ogmund: 17
√ Molo: 13
√ Ozymandius (Yellow Robe guy to SE): 12
√ Cards Woman and two other new arrivals: 10
√ Dain: 8
√ Kelnan: 7
√ Swordsman with short bow (NW): 8 
√ Three crossbowmen (incl woman with white hair): 7
√ Robed figure in red (NE): 5
   Fianna: 4

Crossbowman #1 can roll again as he has advantage since Fianna starts the round unconscious and prone.

Crossbowman #2 hits giving Fianna one failure on her Death Saving Throws...

     At the start of her turn Fianna makes a Death Saving Throw: 10

...

 Currently one success, one failure, pending Crossbowman #1 re-roll...

Quote from Kaemgen >>

Crossbowman #1 can roll again as he has advantage since Fianna starts the round unconscious and prone.

Crossbowman #2 hits giving Fianna one failure on her Death Saving Throws...

     At the start of her turn Fianna makes a Death Saving Throw: 10

...

 Currently one success, one failure, pending Crossbowman #1 re-roll...

 Not at advantage. Prone vs Ranged attack is disadvantage

Katernin raises up her axe, and starts drawing a line to seperate the party from the growing group of cultists. Gusts of wind start up, making it very difficult to actually pass through either way. When that is done, she turns her focus to Fianna and says, "Get up! We need to get out of here."

Action: Cast [Tooltip Not Found] and make the wall separate the party from the aggressors as much a possible

Bonus Action: N/A

Second Turn:
Bonus Action: Healing Word on Fianna (2nd Level)
10

Katernin steps forward and lifts a roaring, if meandering, wall of wind between the party and these cultists. Loose sand and ash flies and stings.

Fianna comes to, pulled back from the brink of deadly blackness.

Ogmund winces and fights his arcane bonds. DC 15 WIS Save: 11

...But fails. Molo may try to roll his own DC11 WIS Save.

Ozymandius, from behind his wall of spirits and crossbowmen guards, fires a flash of light from his fingertips, aimed at Kelnan:
Guiding Bolt vs. Kelnan: 7. Hit: 12 radiant damage.

One of the acolytes near Dain tries to push through the wall: DC 15 STR Save: 19 or take 17 bludgeoning damage.
Another tries to blast Molo through the wind wall with a sacred flame (1 radiant damage unless he can make a DC12 Dex Save)
The third fires a similar blast of radiant energy on Dain. (7 radiant damage)

Somehow the card-playing woman makes it through the wind - terribly torn up by the debris - leaps over Dain and throws herself on Fianna:
Club Attack vs. Fianna: 15   Hit: 2 bludgeoning damage.

Kelnan may act next, and Molo may roll his save(s).

√ Katernin: 18
√ Ogmund: 17 (paralyzed)
   Molo: 13
√ Ozymandius (Yellow Robe guy to SE): 12
√ Cards Woman and two other new arrivals: 10
x Dain: 8 (sleeping)
   Kelnan: 7
   Swordsman with short bow (NW): 8 
   Three crossbowmen (incl woman with white hair): 7
   Robed figure in red (NE): 5
   Fianna: 4

The wall of wind roars, spraying sand and ash against exposed skin.

Kelnan may act next. Molo may roll a DC11 WIS Save to break his paralysis, and if he makes it, a DC12 Dex Save to dodge an acolyte's arcane flame (albeit a small one).

Fianna is back on her feet (barely), but Dain continues to slumber. (Cards woman advantage roll: 5)

The old woman with white hair has managed to push herself through Katernin's wind wall, but at a grave cost - she is barely on her feet. The others continue to fire arcane missiles through the barrier at you.

Molo wis save 3 

Auto-fails the Dex save since he’s still paralyzed when it occurs

The swordsman in the doorway to the northwest gestures and conjures a spectral floating hand, which proceeds to drift through Katernin's wind wall. It grabs Dain's maul as he slumbers, and pulls it back through the barrier, but the wind wrenches it out of its ghostly grip. The weapon flies upwards, dislodging a small chunk of stone ceiling, before clattering to the floor on the far side of the wind wall.

Kelnan is up next!

√ Katernin: 18
√ Ogmund: 17 (paralyzed)
√ Molo: 13 (paralyzed)
√ Ozymandius (Yellow Robe guy to SE): 12
√ Cards Woman and two other new arrivals: 10
x Dain: 8 (sleeping and maul-less)
   Kelnan: 7
√ Swordsman with short bow (NW): 8
   Three crossbowmen (incl woman with white hair): 7
   Robed figure in red (NE): 5
   Fianna: 4

The three grizzled veterans form a tight defensive line around Ozymandius. They launch volleys of bolts at Molo, Fianna, and Kelnan, but their missiles are instantly swept up in the arcane wall of blasting air.

The man in the robes (in the northeast) steps forward, invisibly brandishing his spectral blade. He pauses and laughs at Molo's predicament, then launches an assault upon the poor paralyzed kobold through the wall of wind.

Spectral blade attack vs. Molo (paralyzed; through wind wall): 19. Hit: 7 force damage

He also utters a dark word and makes a gesture toward Molo. A black cloud briefly coalesces around him. "Good night," he mutters.
Spell attack vs Molo:  18. Hit: 20 necrotic damage

Molo goes limp, his eyes rolling back. Kelnan, Fianna, and Katernin may act next.

     Screaming “NOoooooooo!” Fianna reaches out to Molo and casts a 2nd level Cure Wounds on him for 15 healing simultaneously to grabbing him and dragging him to the base of the stairs away from immediate danger.  Hopefully.

     Once done, Fianna turns and glares at the one who managed to move through the wind wall and telekinetically attempts to shove them back into it with a bonus action -  STR 15 or be shoved 5 feet away, Fianna repositioning to make sure that’s into the wall, if need be.

Kelnan is beginning to panic. No one seems to be heeding the pleas to stop. No better time to hope for the best I suppose.

He pulls out his Wand of Wonder and points it toward Ozymandias. Here goes nothing.

He closes his eyes and... 29

A Stinking Cloud billows out from under the target's robes, DC15 CON save within 20 ft to avoid being overtaken.

Fianna reaches out and grabs the limb little kobold, simultaneously healing him. As she retreats back to the stairs, she gives a psychic kick to the card-playing woman:
DC 15 STR save: 6

 The woman shrieks as she falls backward into the wind, and then slammed into the ceiling by the incredibly powerful airflow. She is quite visibly dead.

A yellow, nauseating gas blooms from Ozymandius' fine robes, enveloping most of the east side of the chamber, including his three guards and one of the young acolytes, but blocked by the wall of wind. Only a slight hint of rotten egg passes through the arcane wind wall, but the five combatants on the other side are coughing and retching in reaction.

The frozen spearman continues to struggle against Kelnan's spell:
Ogmund DC15 WIS save:  9
...but fails.

Katernin and Molo (alive, breathing, and held by the scruff of his neck by Fianna, but still paralyzed) may act next. (Molo: DC11 WIS Save)

  Katernin: 18
√ Ogmund the spearman: 17 (paralyzed)
  Molo: 13 (alive but paralyzed)
  Ozymandius (Yellow Robe guy to SE): 12 (in stinking cloud)
 Two acolytes: 10  (one in stinking cloud)
x Dain: 8 (sleeping and maul-less)
  Kelnan: 7
 Swordsman with short bow (NW): 8
 Three crossbowmen (incl woman with white hair): 7. (all in stinking cloud)
 Robed figure in red (NE): 5
 Fianna: 4

Molo dances around to Dain and casts cure wounds at third level

24 

(Molo: DC11 WIS Save with special stinky advantage: 17)

... and is able to move again. He dances over to sleeping Dain with an extra skip in his step, and provides significant healing for Dain. Unfortunately, the stout dwarf sleeps right through it.

Ozymandius, doubled over with a choking cough, fights for air: DC15 CON Save: 17
One of Molo's young attackers, similarly caught in the cloud, similarly tries to catch his breath: DC15 CON Saves: 16

Ozymandius crippled from the billowing stink, his two young zealots fire through the wind wall:
Acolyte #1 vs. Fianna: Make a Dexterity saving throw or take 5 radiant damage. 
Acolyte #2 vs. Molo:  Make a Dexterity saving throw or take 5 radiant damage. 

Dain slumbers on, more peacefully now that the worst of his wounds have been healed.

Kelnan is up next!

Fianna Dex save vs ??:  21

((We need save DoCs... But I think Fianna saved.))

Molo Dex save 11 

Kelnan looks with pleasant surprise at his wand, then raises his rod and a gout of flames shoots forth toward Ozymandias.

(Aganazzar’s Scorcher, should be able to hit Ozy, and acolyte, and one or two crossbows)

11 fire damage, DC15 DEX save for half

Kelnan blasts a line of roaring flames from his rod. DC 15 Dex Saves:
Young Acolyte: 20
Straggly-beard Crossbowman: 4
Ozymandius: 4

Ozymandius Concentration check:  DC10 CON Save: 19

The young acoylte who had been accosting Molo twists and avoids the bulk of the flame jet, but his flammable robes catch fire, and he goes down in a brief but agonizing pyre. He is dead. The grizzled veteran guarding Ozymandius takes the brunt of the blast, but his splint mail and tough mettle keeps him alive, for now. Ozymandius shrieks and evades much, but not all, of the blast.

The bowman in the doorway to the northwest takes a shot at Molo:
Shortbow Attack: 14   Hit: 7 piercing damage.

The grizzled crossbowmen attempt to maintain their composure in the foul cloud:
Crossbowmen DC15 CON Saves: 6, 21, 8.

Only the white-haired woman manages to function in the stinking fumes:
Heavy Crossbow Attack vs. Fianna: 10   Hit: 2 piercing damage.

The robed figure in red steps forward, and carefully skirting the edge of the cloud, locks eyes with Fianna through the wind wall.
His spectral blade flashes right through it.
Spectral blade vs Fianna: 5. Hit: 4 force damage.
"Grovel," he growls. (If she's still up, Fianna must make a DC11 WIS save, or else she must fall prone where she stands and then take no other action on her turn.)

Katernin and Fianna are up next (pending Fianna's hits and save)

  Katernin: 18
√ Ogmund the spearman: 17 (paralyzed)
√ Molo: 13 
√ Ozymandius (Yellow Robe guy to SE): 12 (in stinking cloud)
√ Two acolytes: 10 (one in stinking cloud)
x Dain: 8 (sleeping and maul-less)
√ Kelnan: 7
√ Swordsman with short bow (NW): 8
√ Three crossbowmen (incl woman with white hair): 7. (all in stinking cloud)
√ Robed figure in red (NE): 5
Fianna: 4