Orange20, we're kinda waiting on you. 

The intellect devourers are taken out by the tentacles. The gray oozes will craw towards Grom and Dusk (they move faster than they normally would) and make pseudopod attacks.

Against Grom:

Attack: 23. Damage: 2 bludgeoning and 10 acid.

Against Dusk:

Attack: 6. Damage: 5 bludgeoning and 4 acid.

REACTIONS

Wispy uses his reaction to use his readied multiattack against the Gray Ooze that attacked Dusk

Slam 1 : 12 - on hit: 11 bludgeoning damage.

Slam 2 : 21 - on hit: 12 bludgeoning damage.

-

Dusk casts Shield , making his AC 19 until start of next turn, causing the Gray Ooze's attacks to miss him.

Quote from InkedBee >>

(Maerwyin's Turn)

Maerwyn will attempt to aim her Crossbow at the wounded Intellect Devourer and attack once releasing a glowing bolt that have been infused with Crimson Rite magic.

Attack

Crossbow [Light]: Attack: 26 Damage: 7 + 2

She releases the bolt with a burst of thunderous sound when she casts Thunderclap using the weapon as a spellcasting focus. 

Action: Cast a Spell: Thunderclap: Damage: 19

The swarm of Glowing Rats must succeed on a Constitution saving throw (DC 16) or take 4d6 thunder damage.

 (@Orange20, The first attack is intended against the Gray Oozes since the Intellect Devourers are no more.)

Quote from InkedBee >>

Quote from InkedBee >>

(Maerwyin's Turn)

Maerwyn will attempt to aim her Crossbow at the wounded Intellect Devourer and attack once releasing a glowing bolt that have been infused with Crimson Rite magic.

Attack

Crossbow [Light]: Attack: 26 Damage: 7 + 2

She releases the bolt with a burst of thunderous sound when she casts Thunderclap using the weapon as a spellcasting focus. 

Action: Cast a Spell: Thunderclap: Damage: 19

The swarm of Glowing Rats must succeed on a Constitution saving throw (DC 16) or take 4d6 thunder damage.

 (@Orange20, The first attack is intended against the Gray Oozes since the Intellect Devourers are no more.)

 It hits one of them. 9.

(@Orange20, How many hostile creatures are left? Is it Magron's turn to post action?)

Quote from InkedBee >>

(@Orange20, How many hostile creatures are left? Is it Magron's turn to post action?)

 *One gray ooze and I think the swarm.*

(It's the swarms turn before Magrons)

The Swarm will attack Maerwyn with multiple bites again after running towards her.

Attack: 11.

Damage: 12 piercing damage.

OOC: Friendly reminder Evard's Black Tentacles is still up and Maerwyn (and therefore Swarm) will be in this. 

Quote from Cyb3rM1nd >>

OOC: Friendly reminder Evard's Black Tentacles is still up and Maerwyn (and therefore Swarm) will be in this. 

 *Yup.*

Magron Casts Banishing Smite before striking at the Gray ooze with his hammer:

Attack 1: 16 Damage: 12

Attack 2: 22 Damage: 8

Banishing smite damage on first hit: 22, or when first hit is a crit extra 26

If grey ooze is left with less than 50 hp after banishing smite; its banished

It gets banished.

*I think it's Wispy's turn.*

Wispy

Wispy readies a multiattack for any enemy that moves next to it/Dusk.

(Int Devs are dead, moving to Dusk's turn)

Dusk

Dusk attacks the Swarm by Maerwyn, using the cantrip Mind Sliver.

Swarm must make an Int Save against DC 19. On Fail it takes 13 psychic damage and the next saving throw it makes before the end of Dusk's next turn will have -4 penalty.

NOTE

Reason for the error banner at top is because I forgot about the Gray Ooze being banished and had everything go against it, So I edited and removed Wispy's attacks but this has caused the error. 

This has also bugged the rolls on Dusk turn has before the edit it was 12 damage and -2 penalty. I can possibly reverse the edits if preferred ?

*You don't have to.*

The swarm turns into mist as it is defeated.

With the Swarm gone, Dusk will immediately drop concentration on the Evard's Black Tentacles spell.

*All enemies are gone, so the party can take a "free round".*

Maerwyin will perform a thorough search of the area in order to track down if there's any kind of hostile creature left. If she finds none, she will fly out of the vertical passageway.

Investigation 9

Perception 9

"Are we done yet?" Dusk asks with a sigh. "I can teleport us back to the tavern, if we are." He adds.

Quote from InkedBee >>

Maerwyin will perform a thorough search of the area in order to track down if there's any kind of hostile creature left. If she finds none, she will fly out of the vertical passageway.

Investigation 25

Perception 16

 

 There aren't any monsters left, except the ones that were destroyed by the tentacles.