The arena: Monster killers.

Anything hit will be marked and get disadvantage if they attack someone else than Nadir.

That wound the Lizard pretty good and kills the centipede! 
The owl flies in, claws at count, misses with a 7 and uses flyby to fly away again 

The poisonous snake bites at Dolrik, missing with an 11. 
The giant lizard bites at Nadir, missing with an 11. 

Yoku is up!

Sizing up the enemy of giant creatures, Yoku concentrates on the second Giant Lizard, the one that was splashed by Green-Flame Blade, "You are now my mark and my quarry." He says under his breath, moving the spell to the Giant Lizard. Then he attacks the new target.

(bonus action, move Hunter's Mark to a new target, concentration)

Attack Second Giant Lizard, Longbow , bless, Hunter's Mark, Colossus Slayer: 2 (bless) + 20 Damage: 14

(I’m assuming that you’re targeting the undamaged one cause the one hit by green-flame blade is nearly dead)

The arrow drills it straight and true and nearly takes it down. The giant riding lizard is chomping at Nadir, but misses with a 15. 

Count is up!

Oh. Haha! Flail at the injured lizard: Attack: 23 Damage: 7

Giant lizard no.2 bites at…nadir! 20 to hit for five damage. Nadir must be nummy or something. 

The snail moves and dashes just enough to make it to the group cause snails are slow pokes. Dolrik is up!

(Is there a link to a new combat tracker? The link I have is not showing any combatants.)

Dolrik will target a previously wounded creature (one of the giant lizards?)

Toll the Dead

DC 14 Wis Save or 1 necrotic damage.

(Camping cut short due to weather so I'm back)

(Okie dokie)

Lizard save 13! It goes down. 

(https://www.dndbeyond.com/combat-tracker/51d58fca-dbca-45bf-b182-7593ccbd550e)

Giant frog bites at Nadir, 22 to hit, 5 damage and nadir is grappled!

Nadir is up!

Nadir grappled and restrained by the giant frog has no other choice than to liberate herself.

Athletics (game log): 12 against grapple

(Nadir could have attacked - at disadvantage

Restrained

• A restrained creature's speed becomes 0, and it can't benefit from any bonus to its speed.
• Attack rolls against the creature have advantage, and the creature's attack rolls have disadvantage.
• The creature has disadvantage on Dexterity saving throws)

But being restrained by a giant frog close to their mouth doesn’t sound appealing. Also if she can’t free herself with this roll she’ll try again with action surge: Athletics 16

Escape DC11 so you make it easily enough. No need for action surge. 
The owl repeats its fly-claw-fly away at Count this time, 13 misses. 
The snake bites at nadir, with a 7 it misses!

Yoku is up!

(Thanks, I see the tracker now)

Yoku moves his mark to the Giant Riding Lizard.

(bonus action, move Hunter's Mark to a new target, concentration)

Attack Giant Riding Lizard, Longbow , bless, Hunter's Mark, Colossus Slayer: 4 (bless) + 25 Damage: 19

(Did someone cast bless?)

Yes, Dolrik did in post #1828.

(That's even before I left, no wonder I couldn't find it! I will try to remember it's going)

The giant riding lizard takes a hard hit and moves to avenge itself on its aggressor. 19 to hit for 6 damage, at Yoku. Count is up!

Count will continue to go after the riding lizard:

Green-Flame Blade: Attack: 18 plus bless 3 Damage: 13 bludgeoning, if hits then 4 fire damage to nearby enemy.

Sir Spitz to dodge