Pax focused her magical power, and let loose a dark blast of energy, then another at the Mephit fighting Kastix....

Attack: 19 Damage: 7

Attack: 22 Damage: 3

Then, regardless of the outcome moved over to stand between Kastix and the new earth elemental, and the two mephits... (Just above M2)

+2 to hit on first one.  +3 to hit on second one.

"Curssssed slime! Curssed drow!" Well, cursed or not, but they were here and need to be removed. But the wounds from no less cursed earth elemental begun to slow him a bit, and Sekkar summoned the spirit of great snake and tried to decimate the closest oozes (O4 and O5).

BA Healing Spirit for 3

Attack: 2 + 29 Damage: 11

Attack: 4 + 11 Damage: 16

Kaylyn bats at the mephit that is bothering her and gets a bit of a pummeling in thanks.  She decides she needs to change the odds.  She casts Darkness on her Rod of the Pact Keeper.  Magical darkness spreads out from her to fill a 15-foot-radius sphere around her.

At the start of the closest Ooze's (O1) turn. Rhayna uses her reaction to damage it with her Halo of Spores. (DMG: 8 necrotic)

(OOC: Rhayna’s Bless is down. She failed her concentration check when she was hit by the dust mephit.)

(Then no Bless for Sekkar's attacks, of course)

Even without the benefit of Selune's blessing, Pax's bolts manage to strike the mud creature beside Kaylyn. It takes a retaliatory swing at Pax as she passes by (Opportunity Attack: 19 Damage: 7 bludgeoning) before the entire area around Pax, Kaylyn and the three mephits plunges into thick darkness. The new elemental rumbles across the short gap, but can suddenly no longer see any targets in the darkness. It moves until it bumps into Pax and then the huge arms start swinging in the darkness.

Elemental v Pax (with disadvantage)
Slam #1: Attack: 13 Damage: 15 bludgeoning
Slam #2: Attack: 16 Damage: 10 bludgeoning

The mephits' agitated yammering can be heard in the darkness, and the new dust mephit glides toward Pax, swinging its tiny claws.

Dust Mephit v Pax (with disadvantage)
Claws: Attack: 8 Damage: 5 slashing

Sekkar summons a snake spirit that slithers around his legs, but it is slightly off-putting and interrupts his efforts to attack the oozes, resulting in less damage than he should have liked. The oozes in turn reach out with slimy pseudopods toward Rhayna and Sekkar...

Ooze1 CON save v Halo of Spores: 14 (fail)
Ooze1 v Rhayna: Attack: 16 Damage: 6 bludgeoning + 5 acid
Ooze2 v Rhayna: Attack: 16 Damage: 3 bludgeoning + 10 acid
Ooze3 v Sekkar: Attack: 4 Damage: 4 bludgeoning + 4 acid
Ooze4 v Sekkar: Attack: 13 Damage: 4 bludgeoning + 10 acid
Ooze5 v Sekkar: Attack: 7 Damage: 3 bludgeoning + 7 acid

Kastix is next

Rhayna 20, Drow Statues 20, Gargoyles 18, Pax 16, Sekkar 12, Kaylyn 12, Elemental 12, Oozes 12, Dust Mephits 11, Kastix 5, Mud Mephits 5, Neheedra 4

Conditions:

MAP: The 'K' stands for Kaylyn, and the 'X' is for Kastix. I also put a box in the middle to represent the area the menhir takes up, which can't be passed through.

"This is getting getting too much now," Kastix comaplsinas he points his staff in the distance and cast Fireball from the Staff Behind the Oozes, trying to catch them in the blast but his teammates.

Dex Save: 16

Damage: 18

Empowering reroll 1-2's

New Damage 23

Ooze DEX saves: O1:3, O2:10, O3:11, O4:14, O5:0

Kastix is the master of flame, and places the fireball so expertly as to fully cook the oozes but only just barely singe Rhayna's eyelashes. The oozes weather the blast fairly well though, and although all look burnt, only the one previously irradiated by Dawnbringer falls to bits.

In the darkness, the two mud mephits approach their nearest targets and spew their dirty sticky mud-breath.

Mud#1 Recharge: 6
Mud#1 Mud Breath v Kaylyn. Please roll a DC11 DEX save or be restrained.
Mud#2 Mud Breath v Pax. Please roll a DC11 DEX save or be restrained.

Amongst the crystals, the source of the regal, commanding Elvish voice finally emerges. Standing behind one of the two groups of warriors, and dressed in the sleek spider-silk black dress of a drow priestess or noble, the tall slender figure exudes all the sensual allure typical of a noble female drow... but not entirely so... In the place of hair is a disgusting mass of writhing snakes.

Rhayna is next

Rhayna 20, Drow Warriors? 20, Distant Flyers 18, Pax 16, Sekkar 12, Kaylyn 12, Elemental 12, Oozes 12, Dust Mephits 11, Kastix 5, Mud Mephits 5, Drow Queen 4

MAP: One error: Mud Mephit #2 should be one square closer to Pax.

Rhayna puts away the wand (inside pocket or belt), holds her drow staff with both hands, and strikes the Ooze in front of her (O4).

Attack: 27 Damage: 13 (+6 necrotic damage from Symbiotic Entity)

(OOC: How far is the Queen from the group?)

Pax Dex save : 4   (I'm super impressed I rolled above a 10!  Sweeeeet.)

The thud of two heavy fists just glancing off her armor....followed by a dusty claw raking across her armor...and then a spray of sticky mud across her makes Pax grunt in the darkness.  "This darkness sucks! Which way is outta here?!?" 

Under Rhayna's staff the ooze collapses and spreads across the floor, tiny mushrooms popping instantly out of the remnants. Beyond the oozes, at the top of the stairs (as well as on the other stairs near Kastix) the drow figures lumber forwards, and the reason for jerkiness of their movements becomes clear - they are made entirely of stone! Although in perfect likeness of male drow warriors, their statue faces have no life in the eyes, their heads don't move on their shoulders, and although they all have stone swords sheathed at their stone belts, and stone bows slung at their stone backs, none carry any weapons in their hands. At the far end of the cavern two flying creatures enter through a tunnel, but they are still too far away to make out any details.

Rhayna:

Pax/Sekkar/Kaylyn are up.

Rhayna 20, Drow Statues 20, ??? 18, Pax 16, Sekkar 12, Kaylyn 12, Elemental 12, Oozes 12, Dust Mephits 11, Kastix 5, Mud Mephits 5, Queen 4

condition tracking:

Awesome quality map of combat zone:

 Terrible quality map of larger area:

Pax sighs and tries to head out of the darkness...moving to her right until she emerges from it.  (two squares right). 

Once out of the darkness she looks around and sees the big elemental sticking out of the darkness.  "Very well...ya big rock thing...."

She mutters a spell....Booming Blade and slashes at the elemental. 

Attack: 2 +  24 Damage: 3 + 1 booming energy plus 16 booming energy if he moves before my next turn.

She then backs away further...(another 3 squares to the right)....saying "...here big rock thing...over here buddy..."

Pax's sword strikes the exposed parts of the elemental with a moderately loud crack, and it seems like the sound affected the creature more than the sword blade itself. The body of the elemental then seems to almost pulse with pent-up energy, like the tension of a stormcloud about to break...

Sekkar/Kaylyn next

Oozes were going down as they had to, but they got help. Sekkar could not decide which drow he hated (strong word - more like "wanted to wipe out") more - the real or the stone. But was Dawnbringer's feelings right now were completely in unison with his own - "Exterminate!" Oozes now were a double annoyance.

BA Healing Spirit for 5

Attack on O3 and O5

Attack: 21 Damage: 17

Attack: 13 Damage: 12

As darkness envelopes her Kaylyn feels a moment of calmness.  Who knew such darkness could feel right as opposed to the oppressive darkness of the underdark.  Again the Mephit bothers her as she tries to avoid its muddy breath 18

This time however she is unable to get out of the way and finds herself stuck in the mud.  "This thing needs to go" she says and she fires off 2 blasts of Eldritch energy at the mud mephit bothering her.  Pensive starts hissing at the creature as he fills its simple mind with conflicting emotions to help Kaylyn

My advantages should cancel out the disadvantages making these attacks straight rolls.

Attack: 27 Damage: 7 

Attack: 15 Damage: 7 

As a BA she the sings out to Pax and gives her Bardic Inspiration

As a bonus action, a creature (other than yourself) within 60 ft. that can hear you gains an inspiration die (1d6). For 10 minutes, the creature can add it to one ability check, attack roll, or saving throw. This can be added after seeing the roll, but before knowing the outcome.

Dawnbringer irradiates one ooze into liquid and leaves the other steaming and blotchy but still alive - barely. Kaylyn's blind-aimed blasts slam into the distracted mephit, which squeals in pain but can still be heard flapping its muddy wings. (Kaylyn can repeat the saving throw at end of her turn.)

The elemental half-obscured in the darkness does not like the loud crack that struck it, and turns to pursue the cause. However as it does so, the aura of potential energy surrounding it releases with an almighty BOOM, and huge cracks appear all along its surface, with several chucks of rock breaking off, doing far more damage than even Pax would have expected, as if the creature is somehow more vulnerable to such thunder damage. Nevertheless it continues to pursue Pax and swing its still-bulky arms at her.

Earth Elemental:
Slam#1 v Pax: Attack: 9 Damage: 12 bludgeoning
Slam#2 v Pax: Attack: 17 Damage: 9 bludgeoning (I included the -3 from Heavy Armor Master in the calculation)

The burnt ooze beside Rhayna continues to attack her, (2) but the severely-damaged ooze beside Sekkar has apparently detected the new movement behind it (not that it has a 'front', but you know... on the other side from Sekkar) and instead lashes out at this new 'enemy'.

Ooze2: Pseudopod v Rhayna: Attack: 23 Damage: 8 bludgeoning + 11 acid

Ooze5: Pseudopod v Drow3: Attack: 16 Damage: 3 bludgeoning + 12 acid

The dust mephit inside the cloud is yammering in agitation, not enjoying being itself unable to see, and it flaps (3) north until it emerges from the darkness. Then seeing the elemental fighting Pax, it flies over to blow a plume of dust at Pax's face. (Pax: please make a DC10 DEX save or be blinded for 1 minute.

Kastix is next 

Rhayna 20, Drow Statues 20, ??? 18, Pax 16, Sekkar 12, Kaylyn 12, Elemental 12, Oozes 12, Dust Mephits 11, Kastix 5, Mud Mephits 5, Queen 4

Condition/Status

MAP

Dex save  7

Kastix putters for a moment as he looke back and forth at the onomcing legions, " You! Go away!" He cast fireball at statues that make up D8-D12 group. 

Dex Save: 16

Damage: 27

Pax Dex save vs dust : 17 

The huge elemental lumbers over and sends to crashing fists down at her, thudding off of the dark shadows and heavy armor she's wearing. The dust elemental comes over and blows dust in her face and she manages to close her eyes and turn her head in time to avoid the worst of it....

Drow Statue#7 DEX save: 8
Drow Statue#8 DEX save: 16
Drow Statue#9 DEX save: 7
Drow Statue#10 DEX save: 17
Drow Statue#11 DEX save: 11
Drow Statue#12 DEX save: 15

The fireball from Kastix engulfs the group of statues, and sends an eye-scorching wave of heat across the chamber, but when the flames disperse, all the statues are still standing and continuing to advance, with the Queen moving up behind them. Kastix is the first to glimpse her visage - a face that still retains extraordinary beauty in its elvish perfection, but at the same time is so horrifying to behold that Kastix feels a sharp tingle up his spine. (No effect yet though) From her lips comes the repeated command in drow-like Elvish: Advance! Destroy them! For your Queen and for Ogremoch's Bane!

M1 recharge: 1. M2 movement: 5

The mud mephit beside Kaylyn, despite not being able to see, takes advantage of her being covered in mud and thumps at her with tiny fists.

(Sorry, forgot about your successful end-of-turn save)

The mud mephit beside Kaylyn, despite not being able to see, continues to thump at her with tiny fists.

Mud Mephit #1: Fists v Kaylyn: Attack: 6 Damage: 7 Disadvantage roll: 15

And just like his dusty companion, the other mud mephit pops out of the darkness, spies the battle nearby, and goes to join in.

Mud Mephit #2: Mud Breath v Pax. DC11 DEX save or restrained for 1 minute.

Rhayna is next

Rhayna 20, Drow Statues 20, ??? 18, Pax 16, Sekkar 12, Kaylyn 12, Elemental 12, Oozes 12, Dust Mephits 11, Kastix 5, Mud Mephits 5, Queen 4