Jorin's body is now covered in new scars from the grievous wounds he's suffered and the magical healing that's restored him. In addition, this chaff chuul is really making him angry. 

(I'd totally rather be putting axe swings into the aboleth but Jorin's back down to 18hp and i don't think taking an AoO is wise...but...how far is the aboleth from Jorin?)

Quote from Guiltysparc >>

(I'd totally rather be putting axe swings into the aboleth but Jorin's back down to 18hp and i don't think taking an AoO is wise...but...how far is the aboleth from Jorin?)

(Jorin is grappled. It will take an action to try to escape DC 13.

For some reason I thought Moonbeam moved 30' in a round, when it is actually 60'. That is able to catch up to the location of the aboleth.

Since Hildigrim and Jorin are both underwater, Hildigrim can pantomime where Jorin should stab the chuul, since he hasn't used his Bonus Action and can Help from a distance as long as he can be heard OR seen.)

After Hildigrim's arrow missed, you notice that a quartet of Troglodytes are swimming in the passageway, not quite over the aboleth. As a legendary action, it touches one of the trogs. It twitches in pain, then sprawls motionless on the water surface. As the water currents float the dead body back in the direction it came from, a few of the aboleth's wounds heal over.

The other 3 troglodytes seem unconcerned about the death of their companion.

Quillary shakes her head as the dark mantle disappears, but turns and races after the aboleth, the beam of moonlight skittering along ahead of her until it shines on the horror under the water. Her spores swirl around her in her symbiotic form.

Move: full 30' along the top of the water towards the aboleth, as close to it as she can get.
Action: Move the 2nd level Moonbeam to shine on the aboleth. Con Save vs DC 15 or 14 radiant damage, half on a save. (And hopefully a concentration check!)

Reaction: She has Absorb Elements ready to go with a first level slot should the elemental attack her with fire. That will give her resistance for that attack and the rest of the turn.

I forgot to roll bless ... just in case: 3 + 10 (that I rolled)

Hildigrim pantomimes where Jorin should stab the chuul. :)

OHHH, if Jorin is grappled by the chuul then he'll for sure give that chuul some of the business.

Attacks!

• First attack w/out disadvantage thanks to Hildi: Attack: 18 Damage: Unable to parse dice roll.
• Second attack w disad: Attack: 26 Damage: 10
• Moonblade attack w disad: Attack: 13 Damage: 16
• +7 radiant damage

The chuul is AC 16. Does Jorin hit all three times? Bless for his moon blade attack: 2
Moonblade missed, but other 2 attacks did 29 damage.

Aboleth CON save vs. moonbeam DC 15: 10
Takes 14 radiant damage from moonbeam.
(The charm effect on Pascal is not a spell, and does not require concentration. But you know from past fights that damage to the victim sometimes breaks the effect.)

Drusk cannot use the spiritual weapon, as he uses his bonus action for a 1st level Healing Word on Jorin. HP healed: 7
For his action, he moves next to Pascal and punches him (4 damage if it hits). To-hit: 14

The chuul uses its tentacles on Jorin again. CON save vs. DC 13 poison or be paralyzed.
It will attack Jorin with a pincer. It swims within 10' of Hildigrim and attacks him with the free pincer.

• J Attack: 7 Damage: 7  (just missed!)
• H Attack: 12 Damage: 11  (hits, grappled)

The aboleth is in bad shape. (The moonbeam took out a lot of its remaining health.) It swims underneath Quillary (within 10') and makes 3 tentacle attacks.

• Attack1: 13 Damage: 13  (hits)
• Attack2: 22 Damage: 16  (just misses)
• Attack3: 24 Damage: 13  (misses)

The tentacle hit requires a CON save vs. DC 14 for disease. (No immediate effect on a fail.)

Two of the troglodytes swim around the moonbeam, and are 10' away from Quillary.
The 3rd one brushed the Moonbeam. Although it saves (does not die from 7 damage), it becomes startled (no longer charmed), and decides to swim back the direction it came (away from battle).

Since Pascal took damage, he gets another WIS save vs DC 14: 8  (still charmed)
He casts Hold Person on Drusk. WIS save vs. DC 14: 16  (saved, can continue punching Pascal)

The fire elemental rushes at Quillary. It stays on top of the water due to the steam (like reverse fire walking), but it takes 10 cold damage from the exposure. It strikes twice at Quillary.

• Attack1: 20 Damage: 6  (miss)
• Attack2: 7 Damage: 7  (miss)

At the start of the new round...

The aboleth uses its lair effect to cause the water to batter at the party.
Jorin and Hildigrim roll a STR save vs. DC 14 or get knocked prone.
(Even if Drusk and Quillary fail, they can use half their movement to stand up. Since Jorin and Hildigrim are grappled, they don't have the movement to "stand up", and the chuul will attack with advantage while they are "prone".)

Everyone still has the Bless effect.

The chuul is under half health. The aboleth is in bad shape. The fire elemental has taken 10 cold damage. There are still 2 troglodytes swimming towards Quillary (10' away).

Hildigrim is at 20 HP, Jorin 28 HP, Pascal 54 HP, Drusk 48 HP, and Quillary's temp HP is at 18.
Pascal is still charmed (fighting party).

Quillary has to roll a CON save for Moonbeam concentration (DC 10) and against the tentacle attack (advantage for DC 14 disease).
(If she decides to dive 5' down to melee attack the aboleth, she is still within 5' of the fire elemental, so won't risk an AoO.)

Hildigrim, Jorin, and Quillary are up.

Quillary’s Con Saves…

3 vs DC 10 to maintain concentration on Moonbeam

20 vs DC 14 on disease (Adv for being Reborn)

 The Moonbeam winks out, leaving us all in a darker place. ;)

With a growl as she stands up, Quillary stares death at the aboleth and crooks her finger at it while her spores reach out hungrily.

Move: stand up

Action: cast Chill Touch at the aboleth. 11 to hit, for 9 necrotic damage

Reaction: Halo of spores, enhanced by Symbiotic Entity, at the start of its turn (or when moving into range) an enemy within 10’ makes a Con Save vs DC 15 or takes 7 necrotic damage.

OOC > Welp. Now she takes all the hits, and she is using her Reaction above for Halo of Spores when the aboleth starts its next turn, so no Absorb Elements… this is gonna hurt. :)

Saves...

• CON vs Chuul Poison DC 13: 19
• STR vs Aboleth Water Punch DC 14: 16

Jorin goes full ham on the chuul, swinging wildly with his weapons!

• Action:  Battleaxe attacks
  • First Attack: 12 Damage: 16
    • +1 to the attack roll
  • Second Attack: 11 Damage: 17
    • +4 to the attack roll
• Bonus Action: Moonblade Attack: 14 Damage: 16
  • +4 to the attack roll
• +3 radiant damage

Dang it, Bless! I keep forgetting!

So, for the attack roll for Chill Touch, add 4 to the to hit roll of 11, with the attendant 9 necrotic damage if it hits...

...woo! That might hit! That make the Chill Touch roll against the aboleth a 15 with 9 necrotic damage.

(OOC: Aboleth has AC 17, sorry. Tough and blubberous hide.
Bless helped on that second strike. Hits with a "3", yikes! The 37 more damage has the chuul in really bad shape.)

The aboleth uses it legendary actions (after Jorin, and after Quillary) to

• grab one of the trogs, and drain its life (healing itself 10 points). Only 1 trog left.
• tail attack at Quillary. Attack: 13 Damage: 16  (misses)

Hildigrim to go.

STR save with bless vs. DC 14: 14

Woo! Thank you, bless!

If Hildigrim wasn't holding his breath, he would growl at the chuul. He fires another arrow at it.

Attack with bless: 16 Damage: 7

Sneak attack?: 10

If the chuul is still alive, Hildi once again pantomimes to Jorin a helpful bit of information. If the chuul is down, he motions toward the aboleth.

Apparently Lliira looks on Hildigrim with favor. Bless aids him in keeping his balance from the water attacks, and nudges his aim as he makes the killing shot against the chuul.

Jorin and Hildigrim don't have movement (used up getting the pincers pried open), but Water Walking gets them to the surface so they can get a breath of air (and see that Pascal has turned on the party).

Drusk punches Pascal. His bonus action is to move the spiritual weapon closer to the aboleth. (The smiling face weapon is a lot slower than moonbeam was.)

• Attack: 20 Damage: 4  (terrible roll misses)

Aboleth CON save vs. Quillary spores DC 15: 10  (fails, takes 9 necrotic)

 The aboleth makes 3 tentacle attacks at Quillary

• Attack1: 14 Damage: 15  (hit)
• Attack2: 16 Damage: 14  (hit)
• Attack3: 28 Damage: 12  (hit)

The fire elemental takes 10 more damage from contact with the water, and attacks Quillary twice.

• Attack1: 9 Damage: 7  (hit)
• Attack2: 23 Damage: 15  (miss)

The troglodyte stays near the aboleth. (OOC: one more "healing potion" left for the aboleth)

Pascal hurls a fire bolt at Jorin (with disadvantage since Drusk is within 5'). Bless bonus: 3

• Attack: 15 Damage: 9  (hits after adding Bless, fire damage so no rage reduction)

New round...  Everyone still has Bless.

The aboleth again sends a psychic attack through the water as a lair action. Everyone roll a WIS save vs. DC 14, taking 7 psychic damage on a fail.

Quillary should roll 3 CON saves vs. DC 14 disease. (No immediate effect on fail.)
She also took fire damage from the fire elemental. Normally she would be set on fire, but I'm going to ignore that since you are standing on a lake and the fire elemental is thrashing in the water. (OOC: Quillary has bad memories about fire, correct? It shouldn't affect combat, but maybe her role-playing reaction is bad.)
Quillary's temp HP are gone, and she is down to 21 HP.

Jorin got hit by a fire bolt, and is at 19 HP. (Those were low damage rolls, so maybe Pascal is subconsciously fighting the aboleth's charm.)
He is 25' away from Quillary and the aboleth. (With his 40' of movement, he will be able to run next to any foe, including swimming down to the aboleth. Hildigrim has given him Help for his first attack against the aboleth.)

Hildigrim cannot get in melee range, but has his bow for ranged attacks from the water surface. (Shooting at the aboleth underwater will be at disadvantage.)

The aboleth is still low on HP after the spore necrotic damage. (It will drain the life from the troglodyte when it can.)
Pascal is still charmed.
The fire elemental has taken 20 damage total, but still burns brightly.
The dead chuul uses its Action to inertly float to the lake bottom and begin decomposing.

Hildigrim, Jorin, and Quillary are up.

Hildigrim gets his bearings, takes a breath, and dives down under the water's surface once again (bonus action to move). He aims and fires another arrow at the aboleth (he will move to where he gets line of sight if needed, but he's not keen on getting close).

Attack: 15 Damage: 10 + bless: 4

(OOC: Hildigrim get disadvantage on underwater combat no matter what, since his ranged weapon isn't a javelin or crossbow. He only went underwater on previous shots when the aboleth was using cover from an underwater tunnel on the west wall. It had moved to the southeast corner, so it doesn't have cover now.

You can decide whether you want Hildigrim to stay at the surface or dive down, but either way I'll need another d20 roll for the disadvantage. The bless roll stays the same.)

Jorin steels his mind against the aboleths attacks, bolstered by Llirra's divine joy.  Wisdom save: 8 + 2

edit: oh shit, he sure does!

Jorin roars, "It is time to finish this fight, the final spear thrust is now, friends, do not falter!"

He dives into the water and attacks the aboleth with all his fury!

• Action: Reckless battleaxe attacks
  • First Attack: 24 Damage: 12
  • Second Attack: 29 Damage: 17
  • Plus bless!  First: 4    Second: 1
• Bonus: Reckless Moonblade attack!
  • Attack: 25 Damage: 16
  • Bless! 2
• Plus 5 radiant damage to first hit