Vigan

A monster from the goliath's wildest nightmares creeps onto the neighbouring table.  "Hmph!  I would have preferred more giants."

Unsheathing a couple of javelins, Vigan launches them at the creature, hoping to wear it down a bit before he would inevitably have to go to-to-toe with it.

Attack 1: 10

Damage 1: 5

Attack 2: 14

Damage 2: 8

Andor 

A plethora of Andors all ascend up onto the table near to Vigan at the same time (C8) "Shield you eyes this is going to be bright" a second later, arms extended and hands a foot apart a blinding bolt of lightning streaks from the sorcerer towards the unusual beast "Easy gentlemen, no need to get too close until we have to!", the storm winds then lift Andor up and deposit him on the bench behind him granting a little cover from the remorhaz.

Casts Lightning Bolt for 25 Dex save DC15 for half damage

Rixton:

I fall back to my original position (E5) and nock another arrow (+1). Again, I eye the remorhaz to predict its direction and try for a soft spot on it.

Bonus action - Insightful fighting: 20

Shortbow (+1 with +1 arrow) Attack: 22 Damage: 9 + 8 on a successful insight roll above.

Carrow

Continuing the barrage Carrow fires another two arrows in quick succession hoping to slow the monstrosity before it engages the group.

Attack: 11 

Damage: 7 

Attack2: 25 

Damage2: 10

Vigan hurls two javelins, but both come up short and clatter off the granite table top. The remorhaz, distracted by Vigan's attacks, is caught completely off guard by Andor's lightning strike and Rixton's bow shot, both of which strike the monster with their full force. Immediately thereafter, another one of Carrow's arrows penetrates the remorhaz's hide. 

(Ladrian's round 2 action is next, followed by the remorhaz)

Ladrian

Staying where he is he shots at the butterfly

Attack: 11 Damage: 22

Another one of Ladrian's crossbow bolts zings across the room, just missing the remorhaz and flying into the alcove behind it. Its fury rising from all the stinging ranged attacks, the monster continues its charge over the granite table. Locking its eyes and attention on the closest foe, it draws within 20' of Harshnag. The frost giant yells something in Giant about the Eye being overrun by barbarians and foul beasts before swinging his greataxe...

• Greataxe attack: 15 | Slashing damage: 19

Harshnag's swing narrowly misses. 

(Vigan's action is next; then everyone else may begin round 3 in any order)

Updated map: 

Vigan

Sensing the moment of truth is nearly upon him, the goliath grasps a handaxe in each hand and jumps down off the table via the bench, heading towards the creature.

He launches his axes at the beast in quick succession, and then draws his glaive, yelling an expletive in giantish at the remorhaz to gain its attention.

Attack 1: 16

Damage 1: 6

Goading Attack 1: 7 <- new damage

Remorhaz to make WIS save DC 15

Attack 2: 12

Damage 2: 7

Rixton:

I fall back to one of the benches (at F4), climbing onto it to serve as a second tier of missile attack below Ladrian. Then I nock another arrow (+1) and aniticipate the movement of the remorhaz, looking again for a weak spot to sink my arrow. Then, I let the arrow loose.

Bonus action - Insightful fighting: 18

Shortbow (+1 and +1 arrow) Attack: 15 Damage: 11 + 8 damage on a successful insight roll above.

Ladrian

Moves to H3 before shooting again

Attack: 9 Damage: 10

If Harshnag is withing 5feet, then Sneak attack dmg: 12

(Oh, yes, Rixton doesn't need insightful fighting if Harshnag is within 5 feet either. I had the impression he had a long reach, though.)

Vigan moves dangerously close to the remorhaz and hurls two axes, both of which fail to penetrate the monster's scaly hide. Rixton and Ladrian, however, are able to find vulnerable spots in the remorhaz's neck. Each of their shots draws blood.

(Actions for Andor and Carrow are next; the remorhaz will then follow)

Carrow

Watching the beast move across the hall Carrow studdies the creatures reactions as it's struck with multiple attacks from differing sources, it must have a weakness. 

Action, Hunters Sense.

Bonus Action, Slayers Prey.

Andor

"Well, I'm not going any closer, and I don't think frost is going to hurt that" Andor says more to himself than anyone else as he slides his crossbow off his shoulder, loading it with deft fingers.  Aiming at the large creature he squeezes off a bolt.

Attack 19 for 8

Carrow lowers his bow and scrutinizes the remorhaz, looking for any signs of immunity, resistance, or weakness...

 Andor keeps his distance and fires a crossbow bolt. Like so many other attacks thus far, the bolt fails to penetrate the monsters hide. Having at last closed the gap between itself and an enemy, the remorhaz makes a lightning-fast strike at Harshnag in an attempt to lock the giant in its fiery jaws...

• Bite attack: 31 | Piercing damage: 62 + an additional 15 fire damage

Harshnag anticipated the attack and moves to his right just enough to avoid a mouthful of teeth and flames. The frost giant then rears back with his greataxe and swings a second time...

•  Greataxe attack: 26 | Slashing damage: 14

The giant's axeblade opens an enormous wound on the remorhaz's head, and the monster reels momentarily from the force of the blow. Harshnag lets out a hearty laugh and says, "Time to finish it, lads!" 

(Vigan's round 3 action is next; everyone else may then follow with actions for round 4) 

Vigan

Watching another two weapons miss the rather large target, Vigan frowns and grumbles to himself, clearly disappointed in his throwing skills.  Reading his glaive, he charges the remorhaz.

Move to 10ft away from the monster

Attack 1: 21

Damage 1: 15

Attack 2: 20

Action surge

Attack 3: 26

Damage 3: 20

Attack 4: 28

Bonus Attack 5: 11

Bonus Damage 5: 15

Rixton:

Seeing the creature receive a staggering blow from Harshnag and several follow-up strikes from Vigan, I see hope that this fight is close to an end. I nock another (+1) arrow and try to anticipate the movements of the remorhaz, targeting one of its wounds.

Bonus action - Insightful fighting: 7

Shortbow (+1 with +1 arrow) Attack: 18 Damage: 8 + 4 damage with a successful insight check.

Andor 

Cursing to himself as his shot goes wide Andor is busy reloading as Harshnag nearly splits the remirhaz's head in two. As he looks up he smiles seeing the terrible wound pausing his own shot as Vigan makes some deadly shots of his own count, as Rixton's arrow sails wide too he fires once more hoping to at least distract the creature from Vigan.

Attack 26 for 6 

Ladrian

Fires another bolt at the butterfly like creature in the hopes of bringing it down fast

Attack: 22 Damage: Unable to parse dice roll.