Jalt flanks Ettercap2 and swings with the Staff.. Attack: 22 Damage: 7

SG damage: 9

The Staff of Healing unheals the ettercap.

Spiders 3 and 4 attack Jalt:
Attack: 25 Damage: 12
Attack: 13 Damage: 4

Spider 3 scores a hit.  Jalt, give me a CON save, DC 11, take 11 poison damage on a fail, half on a success. And make a DC10 CON save to keep Spirit Guardians up.

Spiders 1, 2 and 5 attack Bazavur:
Attack: 6 Damage: 11
Attack: 17 Damage: 9
Attack: 8 Damage: 9

Spider WIS saves: 16  2 

All good. Spider 3 survived, and made his attack on Jalt. :)

Round Four
Tangle and Bazavur
Soar
Ettercaps
Jalt
Spiders 3, 4 and 5
Spiders 1 and 2

Tangle and Bazavur are up.

Con save for poison: 3

Con save to hold spell: 13

Tangle jukes away from the spider that attacked Jalt, and steps south and west, sheathing her sabre and removing her shield from her arm as she goes.

Bonus Action: Cunning Action Disengage
Move: 3 squares west, two squares south
Action: doff shield

Reaction, reserved for Uncanny Dodge

Bazavur continues to dodge.

Soar is up.

Soar tries to take down Spider 3, and if she does, she runs right on top of it to come to Bazavur's aid.

Attack: 29 Damage: 23
Extra Attack: 13 Damage: 8

If it drops it she moves to flank Spider 5 with Bazavur.

Spider 3 goes down, and Spider 5 gets flanked.

Opportunity Attack from Ettercap 2: Attack: 6 Damage: 5

Nope.

Ettercap 1 attacks Bazavur:
Attack: 8 Damage: 4
Attack: 7 Damage: 8

Also nope.

Ettercap 2 attacks Jalt:
Attack: 20 Damage: 8
Attack: 20 Damage: 7

Even noper.

Ettercap 2 also WIS save: 2

Noper and noper.

Jalt is up.

Jalt turns his attention to Ettercap 2 and swings away Attack: 14 Damage: 7

And hits Ettercap 2 in what you assume is its stomach.  Hard to say for sure.

Spider 4 WIS save: 18

Spiders 1, 2 and 5 continue to attack Bazavur:

Attack: 19 Damage: 8
Attack: 14 Damage: 5
Attack: 12 Damage: 7

That's one hit for 4 piercing damage. Bazavur's CON save: 20

Bazavur also takes half 13 poison damage.

Waiting now to learn Spider 4's fate.