MTG: Adventures in the Forgotten Realms

<this is just a reminder that I am not altering the mechanics monsters, etc. of this module from the form in which it was published>

Crocolyth glimpses into the waters of the pool and sees three distinct figures zooming about beneath the surface- but they're shape is intangible (despite my description, per the Statblock, they would be considered invisible.  I'm going to say everyone but Crocolyth is surprised, because I think the water would be moving or rippling or something that would give away that they were there, given the investigation.).  Without hesitation, three water weirds attack.

Roll initiative.

Weirds: 13

Crocolyth Initiative: 13

Crocolyth will attack one of the Water Weirds and she attempts to grapple the creature.

Attack

Attack: 18 Damage: 3

Weneon initiative: 23

R1 actions:

W1 x M Constrict. 24 reach 10 ft., one creature. 12 bludgeoning damage.

W2 x Cal  25 reach 10 ft., one creature. 14 bludgeoning damage.

W3 x Wen  6 reach 10 ft., one creature. 9 bludgeoning damage.

If the target is Medium or smaller, it is grappled (escape DC 13) and pulled 5 feet toward the water weird. Until this grapple ends, the target is restrained, the water weird tries to drown it, and the water weird can’t constrict another target.

Crocolyth hits the first water weird, but it manages to escape her jaws. (Ignore above attack. It uses its action to escape) 

Round 2. (Still waiting on some initiatives, but you can post if you like.)

 <I messes up.  Here's the grapple escape for the water weird that would try to attack Marlyth >

W1 Escape 13

(Round 2)

Crocolyth will use a bonus action to change her quarry and mark the first Water Weird with previously cast Hunter's Mark. Then she will use her Quarterstaff to attack the first creature.

Bonus Action: Hunter's Mark

Action: Attack: Quarterstaff Shillelagh  Attack: 26 Damage: 8 + 2 from spell.

Quote from InkedBee >>

(Round 2)

Crocolyth will use a bonus action to change her quarry and mark the first Water Weird with previously cast Hunter's Mark. Then she will use her Quarterstaff to attack the first creature.

Bonus Action: Hunter's Mark

Action: Attack: Quarterstaff Shillelagh  Attack: 26 Damage: 8 + 2 from spell.

 Extra Damage for Critical Hit: 8

Angus initiative 21

https://www.owlbear.rodeo/game/zqmcPXZ4S

map.  (assuming it works, you can move your tokens.)

Tabaqui initiative 14

Round 2

He will back away from the weirds to a range of approximately 35' and fire his shortbow at the water weird previously attacked by Marlyth

ShortbowAttack: 25 Damage: 11 nonmagical piercing + Sneak attack 25 nonmagical piercing.

(oof, crit fail)

Round 2

As a bonus action, Angus will mutter a prayer over his longsword, casting magic weapon.

He will then rush toward the weird, fiercely slashing at its watery appendages.

First longsword Attack: 25 Damage: 12 magical slashing 

Second longsword Attack: 11 Damage: 15 magical slashing 

(In the words of Marisha Ray... Pop pop! Weneon's strikes count as magical, just as an fyi)

Attack: 16 Damage: 7

Attack: 10 Damage: 4

Bonus action flurry of blows

Attack: 16 Damage: 5

Attack: 15 Damage: 4

Plus 8 sneak attack

Against the weird that's engaged with her allies

 Tabaqui's arrow zips by the weird wrestling with Marlyth as she bashes it with her stiaff.  Angus slices at it, spraying water across the surface of the pool.  Weneon splashes as she lands a flurry of punches on the same elemental.   

The weird falls.  Then there were 2.

W2 x Marlyth  18 reach 10 ft., one creature. 11 bludgeoning damage.

W3 x Marlyth 13 reach 10 ft., one creature. 17 bludgeoning damage.

Marlyth is grappledby weird 2 (escape DC 13) and pulled 5 feet toward the water weird. Until this grapple ends, the target is restrained, the water weird tries to drown it, and the water weird can’t constrict another target.

Grapple Escape Check 19

Crocolyth automatically assumes her natural form and receives 10 damage.

Constitution Check to maintain concentration on spell: 20 (rolled in gamelog)

"Get away from the water! One of the elementals tried to drown me."

Tabaqui will aim his bow at W2 now.

ShortbowAttack: 16 Damage: 10 nonmagical piercing + Sneak attack 17 nonmagical piercing.

(Round 3)

Marlyth will cease to maintain concentration on the previously cast Hunter's Mark. Then she will use her Quarterstaff to cast Control Water while attempting to manipulate the water of the shallow reservoir into moving apart and creating a trenchway that might lead to the other section of the sepulcher.