(Well I forgot to roll with advantage anyway so not a problem.)

Erix decides to transform into a wolf spider so he can get closer to Greezelet and attack:

To hit 20 for 4 dmg and DC11 con save for 5 poison damage.

Then panther stays ready to attack when a troll comes into reach.

Elero takes a shot at Troll 1, at advantage since it's restrained.

Light Crossbow attack: 19 or 26 to hit and 12 damage.

The Protector Cannon pulses out 4 temp HP of shielding to our melee combatants.

LANDMOP's attacks hit, while Erix's poison bite has no effect on the venomous Greezelet, in fact seeming to make her stronger. Zoveldra and Mark continue to pepper Greezelet with arrows. I'll go ahead and roll Elero's attack as I can't see his dice rolls:

Attack: 25 Damage: 9 Piercing

Greezelet is covered in green-tinged blood now, swaying on her feet as she bites and slashes at Erix. Troll 1 tries to escape the web again:

Troll 1 STR check against Web: 9

Greezelet Bite against Erix Attack: 16 Damage: 6 Piercing plus  7 Poison. And Erix is Poisoned until the start of her next turn.

Assuming that hits, her Claws are made with advantage due to poison:

Claw against Erix Attack: 9 Damage: 9 Slashing and 5 Poison

Claw against Erix Attack: 24 Damage: 8 Slashing and 1 Poison

Erix makes two concentration checks:

DC 10 CON Save: 21

DC 10 CON Save: 19

You all are up. Troll 1 is stuck in the web still, while Greezelet is in melee with Erix and the Undead Spirit, looking pretty beat.

Erix dex save for be restrained in web: 5
Erix throws his final ball of fur behind Greezelet: and it turns into a Giant elk

Giant Elk: Ram attack: to hit 9 for 10dmg

btw; shouldn Greezelet attack at disadvantage due to being Frightened?

Yeah your right, let me roll two rolls for the two that hit:

27

25

Elero takes another shot at Grezelet, at advantage since the troll's restrained.  Hoping the forum dice rolls work this time.

Light Crossbow attack: 19 or 19 to hit and 5 damage.

The Protector Cannon gives 6 temp HP to all who need it.

With the critical, that's an extra 8 damage.

LANDMOP will order the undead spirit to attack Greezelet again

Attack: 21 Damage: 8

And LANDMOP will launch a Blood Bolt at Troll 1

Attack: 22 Damage: 4

Zoveldra moves in to attack Greezelet in melee.

Dex save if needed for web: 15

Action: Unarmed Strike to hit (w disadvantage?) 9 or 14, damage 13 force

Extra Attack: Unarmed Strike to hit 22 or 23, damage 13 force

Bonus Action: disengage and get out of Greezelet's melee range

Don't know what happened with my last post, it said dice rolls not permitted or something and when I tried to copy it, it flagged it

If Erix failed in being Restrained by the web, does that mean he drops concentration on it to throw the elk ball? The Elf misses. As Greezelet is not the Troll restrained, and the other troll probably isn't either if Erix dropped his web, Elero's bolt simply hits Greezelet. LANDMOP's Undead Spirit and his blood bolt miss the Venomous Troll shaman, while Zoveldra (no need to roll against Restrain because the web is probably dropped) steps forward and slams her fist into the Shaman's head. With a loud crack, the Topknot chief drops to the ground, dead (Probably no need for Zoveldra to disengage here either.) Mark fires a shot at the other Troll, but misses.

Troll 1 heals himself again, now back at full health. He looks at his dead chief on the ground, disengages, and runs toward the Slaverers' section of caves screaming "Greezelet is dead! She's been killed by intruders, the Topknots have fallen!" As he runs he starts pulling out his topknots, taking 5 damage as he pulls out his own hair to join the Slaverers.

You all are up. Troll 1 is retreating toward area 2 into Slaverer territory. Will you let him go, give chase, or fire a few ranged shots. 

"Think we could convince them we did them a favor and they should move on?"

LANDMOP says, a whirring wheeze escapes their chest, a noise of exhaustion and frustration

Anyone who can speak Giant or who has proficiency in Nature can roll a Nature check to get an idea if that might work.

(LANDMOP is neither, so they're no help in that department)

(Same for Zo.)