Both Orcs get blasted away, while the Orc Priest gets hurled backwards. Elero hits the Orc War Chief with a crossbow bolt, while Mome throws a Ray of Frost, that misses. The Orc War Chief runs at Mome with his axe, while the Orc Priest throws his spear at her while also striking with his Spiritual Spear. The Older Orc pulls his strange spear and goes to attack LANDMOP with it and a spiritual knife that appears behind him. The remaining Inspired strikes at the snake with his Crysteel Dagger:

Orc War Chief Axe 1 against Mome Attack: 19 Damage: 5 Slashing plus another 1 Slashing

Orc War Chief Axe 2 against Mome Attack: 10 Damage: 10 Slashing plus another 5 Slashing

Orc Priest Spear against Mome Attack: 10 Damage: 6 Piercing plus another  3 Piercing

Spiritual Spear against Mome Attack: 9 Damage: 2 Radiant

Old Orc Strange Spear against LANDMOP Attack: 18 Damage: 7 Piercing and 8 Psychic

Spiritual Knife against LANDMOP Attack: 15 Damage: 7 Necrotic

Inspired Crysteel Dagger 1 against Snake Attack: 19 Damage: 6 Piercing and 12 Force

Inspired Crysteel Dagger 2 against Snake Attack: 24 Damage: 8 Piercing and 12 Force

LANDMOP sees a strangeness in the Old Orc's eyes as he wields the spear, and he wields the spear with surprising deftness for his age and size

Snagger and Jimjar both attack the Quaggoth, who continues to assault Zoveldra. Buppido attacks Jimjar with his spear:

Snagger Shortsword against Quaggoth Attack: 5 Damage: 6 Piercing and 6 Poisong

Jimjar Warpick against Quaggoth Attack: 11 Damage: 9 Piercing

Quaggoth Claw 1 against Zoveldra Attack: 24 Damage: 6 Slashing

Quaggoth Claw 2 against Zoveldra Attack: 15 Damage: 8 Slashing

Derro Spear against Jimjar Attack: 19 Damage: 3 Piercing

You all are up. LANDMOP fights the strange Old Orc, while Mome fights the Orc War Chief. The Snake has the Inspired Grappled, while Zoveldra is caught up in a fight between your rescued captives.

Sorry I forgot to move Snagger and Jimjar, they should be down near the Quaggoth.

Deflect Attack against Quaggoth Claw 2: -20 damage

Redirect Attack at Buppido: DC 14 dex or 12 slashing damage

Zoveldra deflects the quaggoth's first swing, knocking it towards Buppido, and dodges the next before attacking the beast again. If it goes down, she will move on to Buppido.

Action: Unarmed Strike to hit nat 20+8, damage 13

Extra Attack: Unarmed Strike to hit 18, damage 12

Bonus Action: Unarmed Strike to hit 20, damage 10

Erix tells Clumulk to stay back, seeing how hurt it is, and jumps down to stay in front of it.
With the snake gone after the attacks of the Inspired he looks around, and decides it would be good to have another companion fighting. He therefore decides to cast conjure animals again, for another Giant constrictor snake to try and get the Inspired:

Bite: to hit 9
Constrict: DC14 strength save or take 11 damage and be grappled.

LANDMOP: Rinse Repeat.

Attack: 8 Damage: 13

Note: Necrotic damage and the target can't gain hit points until the start of LANDMOP's next turn

Mome takes damage from the first attack by the Orc War Chief but dodges the rest. (Now at 18hp). She sends a Guiding Bolt (lv 2) at the orc war chief (attack 16, damage 20) then uses her War Priest to attack with her trident (attack 21, damage 3). 

Elero will shoot at the most-damaged foe fighting Zoveldra.

Light Crossbow attack: 23 to hit and 7 damage.

The Protector Cannon sticks close to our melee fighters and pulses out 4 temp HP of shielding to any who need it.

Buppido DC 14 DEX Save: 22

Inspired DC 14 STR Save: 13

Mome's Guiding Bolt would be at Disadvantage due to being in melee with the War Chief (unless she has some skill I don't know about.), new roll here: 16

Erix's snake constricts the final Inspired and you hear their bones cracking as they perish. The combined efforts of Zoveldra and Elero make short work of the Quaggoth and Derro betrayers. Mome hits the Orc War Chief with both attacks, he is looking beat now and yells out in a bloody frothy fury. LANDMOP is unable to get a hit on the Old Orc, but she does notice the Orc's eyes beginning to change. They are almost turning a deep purple-black.

Mark is still up, the remaining enemies are the Orc War Chief, the Orc Priest, and the Older Orc. The War Chief and the Priest look really beat at this point.

Mark aims a bolt at the Priest, and it pings him in the neck, dropping him instantly.

The War Chief looks around the battlefield, seeing all the dead on his side, and let's out a primal scream, swinging again at Mome:

Axe 1 against Mome Attack: 14 Damage: 16 Slashing plus another 7 Slashing

Axe 2 against Mome Attack: 10 Damage: 13 Slashing plus another 8 Slashing

The Older Orc looks LANDMOP in the eyes, and she sees that even the whites of his eyes have now turned black. The Old Orc smiles and closes his eyes, doing nothing this round.

Snagger and Jimjar scream as they both take shots at the War Chief:

Snagger Hand Crossbow at War Chief Attack: 6 Damage: 4 Piercing plus 6 Poison

Jimjar Dart at War Chief Attack: 20 Damage: 6 Piercing and the Orc War Chief is Poisoned.

You all are up. The Orc War Chief is amazingly still up but Poisoned, while the Older Orc stands with his eyes closed, murmuring to himself.

Zoveldra looks around the room, noticing the orc near LANDMOP is doing something suspicious. She sprints over, avoiding the war chief's range, and attempts to hit the old orc with a Stunning Strike.

Bonus Action: dash

Action: Unarmed Strike to hit 17, damage 12 + Stunning Strike (DC 14 CON)

Extra Attack: Unarmed Strike to hit 15, damage 8

LANDMOP tries to reach out again to damage the old orc. 

Attack: 13 Damage: 19 (Rolled in game log)

Elero takes a shot at the Orc War Chief.

Light Crossbow attack: 12 to hit and 6 damage.

The Protector Cannon pulses out 8 temp HP of shielding to any who need it.

Mark will dip back into the shadows and shoot at the war chief to take home out.

hide: 16

Attack w/adv: 18, 10 +10 = 28

Damage w/ sneak attack: 7 + 4 =11 

Zoveldra's first strike hits the Orc, but her second and LANDMOP's do not. Mark and Elero's crossbow bolts hit the Orc War Chief, finally felling the ferocious warrior. 

Old Orc DC 14 CON Save: 5

The Orc Orc is the only combatant left and Paralyzed, Erix and Mome still up. You see now that the strange black spear the Old Orc holds has strange black tendrils dripping out of it, crawling up the Old Orc's arm and around his body.

Erix will try to use his thorn whip to get the spear away from the Old Ord (if allowed?) and The snake moves in to constrict without damage after an order by Erix.

Snake:
DC14 strength save or be grappled

Erix:
Thorn whip: 21 to hit (5dmg) to get the spear away from the old man with the 10ft pull