Leshanna sends a blast of fire at the swarm attacking Neon... Her owl swoops by to distract.

Attack: 14 Damage: 7

Cororina's attack misses its mark as one of the other swarms moves toward Wulfracer and starts crawling on him.

Attack: 10 Damage: 5

Leshanna follows up with a fire bolt that hits the swarm attacking Neon, sending a chunk of the spiders flying. Some of them are able to make their way back to the group, but you can see that there are noticeably fewer spiders in that swarm than there were originally.

The final swarm crawls toward the group to the west, but it isn't able to get into anyone's space to attack them.

Wulfracer is up, then any of you for the top of the next round.

Leshanna moves to the spider swarm that has not attacked anyone, and is not in anyone's space. She slashes at it as she casts booming blade Her owl dives in and distracts the spiders as she attacks.
Dagger Attack: 9 Damage: 4
She then uses her bonus action to misty step away.

On a hit, if the spider swarm moves before her next turn it takes 5 thunder damage.

Wulfracer contorts his right hand into what is definitely a rude gesture, and lets loose with a Sacred Flame at the swarm of spiders around Neon.

"Theleya, if you can hear me, forgive my actions against your spider-folk, but they're whooping on my guildmate."

// Dex roll of 12 or 1d8 damage

Dex save: 12

Wulfracer and Leshanna both find it difficult to target these constantly shifting swarms of spiders.

The swarm that hasn't attacked anyone yet will move into Cororina's space and start crawling on her.

Attack: 6 Damage: 10

Anybody but Leshanna can take the next turn.

Neon is freaking out over the spiders. He figures there’s only one thing to do. He jumps out of the chair and starts swiping away the spiders.

Action: Disengage

Movement: runs to R13.

Wulfracer knows that this fight should end with the party victorious, and he steadies himself before blasting the two swarms near him with a Word of Radiance,

// 12 Con saving throw or 1d6 damage

Neon frantically brushes as many spiders off of his body as he can and runs to a corner. The spider swarm he left reforms and makes its way over to Leshanna and begins crawling on her.

Attack: 9 Damage: 8

Cororina or Wulfracer can take the next turn.

S1 con save: 19

S2 con save: 5

2 damage

Each swarm is slightly injured now but there are still far too many spiders to count. The swarm crawling on Wulfracer will try to bite him some more.

Attack: 13 Damage: 14

Cororina is up, then anyone to start the next round.

Cororina casts Fire Bolt on the group of spiders attacking Wulfracer.

Attack: 6 Damage: 1

// Wulfracer is down

2 Death Roll

Leshanna sends a blast of fire at one of the other swarms, her owl flashing in to distract.
(rolling straight as advantage cancels disadvantage...)
Attack: 16 Damage: 9

Cororina's fire bolt misses its mark but Leshanna's hits. The swarm around Wulfracer's unconscious body moves on to Neon's space, and as it moves you can see that its numbers have now been severely diminished.

Attack: 22 Damage: 3

The swarm is doing less damage now, but it's still enough to take down Neon who was already severely injured.

Neon death save: 20

Neon wakes up and now has 1 HP

Death saves happen at the end of the round, so Cororina is up and then the other two swarms.

Cororina casts Fire Bolt again on the ones who attacked Neon

Attack: 4 Damage: 8

The fire bolt from Cororina misses again. The two remaining swarms continue to try to bite the people they're crawling on.

Against Cororina: Attack: 16 Damage: 10

Against Leshanna: Attack: 10 Damage: 11

Anybody can go to start the next round.

Alright, Neon will stand from prone and attack S1 (my swarm) at disadvantage.

Attack: 23 Damage: 6

Neon's attack takes out another chunk of spiders, and now there is only about a dozen spiders left in that swarm. The swarm on Leshanna will attack her next.

Attack: 8 Damage: 8

Anyone but Neon can go next.

Death roll

20

Leshanna casts shield the previosu round to deflect the attack.

This round she sends a fire bolt at the swarm on ehr companion... Her owl once more flapping by to cancel the disadvantage for Leshanna
Attack: 13 Damage: 7

Leshanna's fire bolt finishes the swarm harassing Neon, killing most of the remaining spiders and sending the remaining few skittering away. The swarm attacking Cororina attempts to take some bites out of her.

Attack: 9 Damage: Unable to parse dice roll.

Cororina is up next (along with Wulfracer's nat 20 death save), and then anyone can start the next round.