The arena: Monster killers.

Will edit if attack goes badly but for now here's the plan:

Count will cast Booming Blade and swing at the remaining gnoll:

Attack: 6 plus 1 Damage: 10

Count will also call out some soothing words to Sir Spitz to help him out! 

Bonus action healing word: 8 hp restored to Sir Spitz.

Sir Spitz will disengage and run around the main combat area.

Quote from Engineered_Beard >>

Unfortunately I think the gnoll gets an attack after being brought to 0 hp...

 You’re right, but it’sa nat 1

In that case Counts nat one will stand as well!

Gnoll no.2 moved to Nadir and attacks her! Attack: 9 Damage: 6 and Attack: 18 Damage: 6

Dolrik is up! Bless Ends next turn. 

Toll the Dead against the other gnoll witherling. Foul undead.

DC 14 Wis Save or 7 necrotic damage. (In game log)

Save is a 3. The goblin goes after Yoku with a scimitar, with an 11 to hit. Nadir is up!

Nadir attacks the goblin as it is distracted by Yoku.

Attack(Shortsword@Goblin): 17 Damage: 9

Attack(Dagger@Goblin or, if dead, @Witherling): 12 Damage: 9

bless for the first strike that might miss: 3

I've got the damage wrong for the dagger attack it should be 2d4 not 2d6+3, here's the correction: 5

These two attacks take the goblin down. The goblin gang member stabs at Yoku with its dagger, 23 to hit fir 5 damage!

Yoku, you’re up!

En garde, you hooligan!

(bonus action to move Hunter's Mark to the Goblin Gang Member, concentration)

Attack first Goblin Gang Member, Rapier, bless, Hunter's Mark: 4 (bless) + 15 Damage: 12

With the Goblin Gang Member out of the way, Yoku scrambles back to his earlier position, ending his turn on top of his discarded bow.

Count, your turn! Only one witherling left. 

Count will Sir Spitz back and and take a swing at the witherling as Sir Spitz takes the dodge action after running back to it.

Attack: 10 Damage: 11

(Stupid me just realized I haven't been taking advantage of getting advantage on non-mounted creatures smaller then my mount!)

It goes down! The bite attack misses as well. 4 if this is a 1 or 2, you all get a short rest. 

No rest. 6

Do we have time for healer kits? Nadir is down to 12/37

(3 waves, no rest, 16 enemies defeated so far. Our host and this crowd is bloodthirsty.)

(This is still round 9, yes? On Dolrik’s turn it will be the start of round 10? Last round of the Bless cast all the way back in round 1? If so, Dolrik is going to Channel Divinity: Twilight Sanctuary in round 10 and then cast a new Bless in round 11.)

If so:

Healing kit: 10

Yoku picks up his bow and sheaths his rapier.

Twilight Sancuary will give him 7 temporary hitpoints and he will cast cure wounds on himself to heal8 hitpoints