Viletta leaps into the saddle, and her horse immediately spurs forward, floundering a little in the deep snow, but charging forward with gusto once he finds his feet. Viletta readies her shortsword in one hand, slipping a dagger from its sheath with the other as she guides her horse with her seat and legs. Driving forward to slash at the goblin Ublon as he charges, then steering her horse to roll back on his haunches and leap away, running back towards the main group.

With advantage due to Mounted Combatant:

Shortsword to hit: 26

Damage: 9

Sneak attack damage: 11

Dagger to hit: 27 (crit)

Damage: 3 plus crit damage so 6?

26 damage total to Ublon

Horse action: Disengage and run back towards the main party. Assuming he can get there and back on 30 feet of movement (halved from normal 60 ft)

Thyrnn fires off a 2nd level ice knife towards the clumped 3 in the back, targeting the middle one.

targeted goblin takes 5 piercing damage, then all 3 need to make DEX DC 15 saves or take 8 cold dmg each.

His invisibility removed now that he attacked, he invokes his wild shape but this time, he doesn’t grow larger, but smaller… into a dogmole.

Once transformed, he begins to move downward into the ground (burrow speed) 10ft, and then sideways 10ft

Iden's Turn

Iden takes aim at Udlon with his heavy crossbow and takes a shot. As he does that he tells Nilme to go roast the three running together.

Action: True Strike to Hit: 9 Damage: 13 Radiant 

BA: Cast dragon's breath(level 2 spell) on Nilme.

Movement: Move 10 feet back

Nilme's Turn

Movement: Move 15 feet above the three grouped together, use dragon breath action then move 20 feet up. Should be 35 feet above the ground.

Action: Fire Breath for three grouped together. DC 14 Dex Save or take 9 fire damage. Half damage on a save.

Thrynn you launch an ice knife at the group of goblins in the back. Gjolder takes 5 points of piercing damage, and all four take 8 points of cold damage, though it doesn't seem to bother them much. Afterwards, you transform and burrow yourself into the frozen ground.

Abishai you release the bolt from your heavy crossbow. The bolt strikes Üblon dealing 13 points of piercing damage.

Iden you release a true strike guided bolt from your heavy crossbow, but the bolt gets pushed off target by the wind, disappearing into the storm. You then cast dragon's breath on Nilme and Nilme burns one goblinoid in the back for 9 fire damage, while the other two manage to dodge the majority of the fiery breath, only taking 4 points of fire damage.

Viletta you charge Üblon atop your horse dealing 26 points of piercing damage. The horses movement is mostly exhausted getting to Üblon for you to attack, so you retreat some, but probably not as much as you would have liked. Luckily, the goblinoid is no longer standing as you sink your shortsword and dagger into the creature.

Üblon, the Ice-Touched attempts to attack you Viletta, but slumps to the ground instead, unmoving.

Blurg, also, the Ice-Touched's eyes glow a bright cyan-blue as a jagged weapon similar to the one Üblon had materializes and the goblinoid swings it at Viletta's riding horse with an 11 to hit, dealing 6 points of slashing damage and 1 point of cold damage. Viletta, please give me an animal handling check to control your horses fear instinct: DC 10.

Grelk and Skalma, you're up! If making a melee attack, Blurg is the only one you can reach. Alternatively, Gjolder and Jahk can be attacked by range.

Combat things be in here

(OOC: To keep things moving smoothly and because I think that was pretty creative, Iden, I'm allowing the dragon's breath attack this time, but familiars cannot attack, so going forward it won't work. Also due to the strong winds, flying creatures must land before their turn ends or fall, so Nilme has landed. Thrynn, your ice knife was technically a straight roll. The advantage from being invisible was negated by the disadvantage of making a ranged attack in the strong wind, but it still hits with a 12+7)

The wind picks up around Grelk as her eyes glow a bright blue. A blast of lightning (sacred flame) shoots from her eyes at Blurg (who takes 6 damage if he fails a dc 15 dex save).

That same glowing blue light then surrounds Viletta's riding horse (who's AC increases by 2 as Grelk cast shield of faith)

Skalma leaps and springs into action, her crampons biting into the permafrost. The nearly eight foot tall goliath draws her shortsword from over her shoulder, a weapon that would could pass as a claymore in the hands of someone of smaller stature.

As she sprints towards Blurg, the blizzard seems to momentarily part for her, whirling instead around the ice-touched goblin, winds snapping and cracking at his form. A searing sigil crackles briefly into being on his forehead, perfectly mirroring the one tattooed on her face, branding him as her chosen prey.

She skids around him in a half-moon, bringing the cutting edge down around the diminutive creature's knee. "It doesn't need tae go this way. Get back tae the frost wi' ye, and we'll spare yer lives."

BONUS ACTION: Hunter's Mark using Favored Enemy (1 of 2 uses). 
MOVEMENT: As much as is required to engage with Blurg. 
ACTION: Attack with Shortsword. To hit: 18. Slashing damage: 7.
Additionally, Hunter's Mark 1d6 force damage: 1. 
And Polar Strikes 1d4 cold damage: 1. This ignores resistance to cold damage due to her Biting Cold subclass feature. 
OTHER: Due to the Vex Weapon Mastery, Skalma has advantage on her next attack roll against Blurg before the end of her next turn.

Quote from Jusblazm >>

Thrynn, your ice knife was technically a straight roll. The advantage from being invisible was negated by the disadvantage of making a ranged attack in the strong wind, but it still hits with a 12+7)

 (OOC - thanks, I forgot about the ranged disadvantage. How far are the goblins from me?)

Viletta has the Mounted Combatant feat, so she will redirect the attack on her mount to herself. An 11 will miss on her.

However here is the Animal Handling in case you still need it: 26

If that's the case, I'll shield of faith Viletta instead of the horse

Grelk you launch a sacred flame at Blurg, but with almost unnatural speed (natural 20), the goblinoid adjusts causing the spell to miss. Afterwards, you cast shield of faith onto Viletta, increasing her AC by 2.

Skalma you charge at Blurg, offering a chance to live if the goblinoid retreats. There is a look of contemplation on its face as you strike the goblin with your shortsword dealing 9 points of damage. The look vanishes as the goblinoid slumps into the snow at your feet.

Viletta you've spent many a month with your horse and you know the signs of when its beginning to panic and exactly what to do to relieve the fear. With ease you manage to calm it.

Skalma you ran up and attacked Blurg who was attacking Viletta and her horse. Watching you strike down the goblinoid, Gjoldier and Jahk both readjust their focus to you, charge and attempt to attack you. 

Gjoldier the Wicked swings at you with his jagged icicle of a sword. With a 12 its sword glances off your leg leaving a mark, but not hurting you noticeably.

Jahk the Frozen joins in, swinging with his sword. With a 9, Jahk's sword also bounces off your leg.

With this, we're back at the top of the initiative order Thrynn, Abishai, Iden, and Viletta you're up. Viletta, both Gjoldier and Jahk are within 5 feet of you and Skalma.

Combat things be here

 (OOC: The remaining goblins are about 20 feet from you Thrynn)

Dogmole Thyrnn tunnels directly towards the goblins emerging at their feet and performs a multiattack on Gjolder.

Bite: 16 to hit - 4 dmg
Claw: 7 to hit

(OOC: when you say "the remaining goblins are 20 feet away" you are talking about 5 new goblins that are from the original post mentioning 9 small creatures?)

Iden takes aim at Gjolder.

Action: True Strike to Hit: 8 Damage: 11 Radiant

Put away his Heavy Crossbow.

Move 15 feet closer to Goblins. 

Nilme flies directly over Gjolder and exhales fire at the ground. Right after that Nilme flies 30 feet away.

Action: Fire Breath at Gjolder. DC 14 Dex Save or take 12 fire damage. Half damage on a save.

Reloading his crossbow as he moves closer to the fight, Abishai fires another bolt at Gjolder if he still stands. If not, Jahk is his target. 'Curse this blizzard! Curse these monsters.'

Movement: 15 feet closer to melee.

Attack: 10/19

Damage: 8

As the others concentrate fire on Gjolder at her side, Viletta pivots her steed and launches a flurry of blades at Jahk on her other side. She then spurs her horse to disengage, leaping back over the snow away from the goblins on either side.

Shortsword to hit: 10 (assume misses, but damage was 10)
Dagger offhand to hit: 15
Dagger damage: 4

Horse action: Disengage and move away (15 ft due to difficult terrain?)

Skalma grimaces at the bloodshed, her soul suddenly heavy with the expression on Blurg's face before he crumbled under the force of her sword. Fools, the lot of us - we should have at least tried talkin' to them first. We kent nothing of them, and yet we ambushed them. Are they the monsters... or are we? 

The goliath's blade still drips with gore, but she yanks free the huge curved scimitar that is its mate from its sheath. "We don't need tae take this any further, goblin. Enough blood has been spilled without reason. Put away that... that icicle... and ye may yet keep yer life." The ranger entreats Jahk, her long shadow looming over him.

BONUS ACTION: Hunter's Mark moved to Jahk. 
MOVEMENT: Engage with Jahk.
ACTION: Influence. Persuasion: 6

Grelk will hold a sacred flame... Ready to attack if Jack makes any aggressive actions... (For 2 damage if a dc 15 dex save is failed). 

Thrynn you burst from the ground, striking at Gjolder with your claws and teeth. Gjolder is able to deflect your claws, but you sink your teeth into his arm, dealing 4 points of piercing damage and dragging him to the ground, unmoving.

Abishai you reload your crossbow and take another shot. Unfortunately, the wind carries the bolt off target, causing it to go wide and disappear into the snow.

Iden you follow suit taking another shot with your crossbow with the assistance of true strike, but it wasn't quite helpful enough, as your bolt disappears into the snow near the goblin. You then command Nilme to use dragon's breath again dealing 6 points of fire damage to Jahk.

Viletta you strike at Jahk with your dagger dealing 4 points of piercing damage, then command your horse to disengage safely 15 feet back.

Skalma you attempt to offer the remaining goblin its life, but the sight of another goblinoid's blood on your weapon and the battering it just took from Nilme and Viletta, enrages Jahk and the goblin instead prepares to strike at you.

Grelk you watch as the goblin begins preparing to strike and release your sacred flame, but in its enraged form, it quickly moves out of the way as it attacks Skalma.

Jahk the Frozen lands a solid strike against your leg, Skalma, (natural 20), dealing 6 points of slashing damage and 1 point of cold damage for a total of 6 points of damage, due to your resistance to cold damage. I need a constitution saving throw from you Skalma to maintain hunter's mark DC 10.

Everyone may post their turn for round 3 of combat, since Üblon and Blurg are both dead.

Combat things be here

(OOC: This round is likely going to be quick, so once enough damage has been done to kill Jahk, I will end combat instead of allowing everyone to post)

Dogmole-Thyrnn strikes out twice, tryin to bring the remaining goblin down. Both attacks find only armor and snow however.

Skalma hisses in pain as the icicle punctures her thigh, hot blood gushing from the wound. She fights the urge to cry out, grits her teeth and composes herself, despite being aggrieved by her choices.

"I'm sorry." The goliath says simply, and begins carving open furious goblinoid at her feet, ending its life as swiftly and cleanly as possible.

Concentration: 13
ACTION: Attack. Scimitar. To hit: 18. Damage: 10.
Nick Weapon Mastery Light Attack: 13. Damage: 6.
Additionally, Hunter's Mark 1d6 force damage: 2. 
And Polar Strikes 1d4 cold damage: 1. This ignores resistance to cold damage due to her Biting Cold subclass feature. 
BONUS ACTION: Attack. Shortsword. To hit: 8. Damage: 10.
MOVEMENT: None.