Wis Save vs Spirits(DC 12): 13.

"How dare you, you Scab ridden wretch!?" Nirzeg shouts back, as he just barely turns her spear aside using his greatsword. More welts appear in his skin as the spirits continue to rake at any exposed flesh, corroding it upon contact. Digging deep, the Githyanki feigns a strike to the side, only to go in with an overhand blow meant to cleave deep into the collarbone. Even if his blade doesn't find its mark, his injuries gradually begin to scab over as another artifice derived note restores a measure of vitality.

Action: Cast (Cantrip)Thunder Cleaver - Attack: 10 Damage: 17 of magical slashing and thunder damage to entrails lady.
If hit and target moves, they take an additional 4 thunder damage.

Bonus Action(if able to save vs Spirits initially): Cast (1st level)Healing Word on self, restoring 5 HP.

Bearasa roars, taking an attack of opportunity with its claws against one of the Barbarians as it backs up. 

Attack: 10 Damage: 4

He then gives chase and lays into them with a bite and another claw swipe.

Bite -- Attack: 15 Damage: 4

Claw -- 12 Damage: 6

Swiper lets out a mighty roar as he runs to stab at one of the remaining barbarians attacking Rasa!

Action: Attack: 9 Damage: 8
Bonus Action: Attack: 14 Damage: 8
Sneaky attacky: 5 

One barbarian is ripped apart by Rasa, and the other is run through by Swiper. 

Nirzeg and the Shaman seem to be locked in mortal combat—she is holding back his sword with her spear, her spectral, fiendish wolves surrounding them in a maelstrom of smoke, red eyes, and spiritual fangs.

Lydia turns in the direction of the Barbarian fighting Nirzeg. She closes one eye and points at her, making her fingers into a gun something that she definitely knows exist, don't @ me. She uses her other hand to grab her holy symbol and casts Guiding Bolt. The radiant energy takes the form of a bullet, spiraling through the air until it makes contact with the remaining Barbarian, upon which it removes her head from her body.

The fiendish wolves disappear, leaving Nirzeg alive but wounded. 

The big frost giant helps you clean up the rest of the stone giants, allowing you to dispatch them with ease.

“That wasn’t the cleanest fighting I’ve ever seen,” he says, wiping the blood from his axe. “But it seems you can handle yourselves against the giantfolk. The name is Harshnag... you mind if I ask what you fine adventures are doing up here?”

"Just... give... up... You... Bi--" The rest dies in Nirzeg's throat as he watches the woman's head get vaporized on the spot. After a quick few looks between the source and the now headless body, the Githyanki shrugs, puts away his blade, and more than happily begin rooting around the corpses body for anything of value. For even if she was a barbarian, there was always -- or so he hoped -- a few trinkets he could effectively enchant and sell later!

"Eh?" Nirzeg looked up to the giant, having at that point been about finished rolling the first corpse. "Yes, well, we're bit new to this shit, old timer." Nirzeg chuckles. "Name's Nirzeg. Though collective--" He motions to the group in its entirety. "We're C3M, or Cem if your feel'n clever. And you could say we're here for your ass... Figuratively, of course. Though I wouldn't put it pass some to.... Well, anyways. Harshnag the grim, I got a few questions for you... First one? The ****. Is going on. With you giants? Not try'na be racist now. But given your record, one of the things figured is that you'd be in the know on that. And secondly, would you be willing to work with us on settingly said Giant Problems? 'cause, shits getting out of hand."

Harshnag gives a soft smile. “And a boldness to match your fighting style. Yes, I think I have the general idea of what’s happening. And as to settling the giant problem, I believe I have the answer to that. The idea came to me when I saw that castle appear over Waterdeep.” He motions towards the distant city on the coast, now hidden from the setting sun. “Perhaps we can make camp and talk about it? It’s a long story.”

// Do you want to camp here with Harshnag? //

"Well we sure as shit didn't come all this way out for the scenery, that's fer sure. So, I don't see why ****'n not." Nirzeg states plainly, after turning back from the setting sun. Yet despite clear eagerness to do so, he still looks to the others. "Well? Ya'll think on that. I'm gonna see if those stone heads got anything interesting on them at least." With that, he motions for Zeek to accompany him, slaps down the nightvision goggles, and almost seemed to cheerily skip over to loot the bodies.

Investigation: (Guide)1+13.

Derrikoth sighs, leaning on his sword, "Very well, we should rest anyways."

He heads over to the battlefield, looking for loot with Nirzeg. He'll also cut off some cloth from a corpse and use it to begin cleaning his weapons and armor.

Investigation: 19

"Well, that went better than expected, dinnit?" Swiper mentions to Lydia as he puts his weapons back in their sheaths. At the mention of resting, he says, "Shinies first, rest later!" and looks over the bodies for any shiny things, everything else he would set aside for the others to pick up if they so wanted it. 

For da shinies: 18

Lydia pats Swiper's head. "Yes it did my friend." Seeing him have some trouble with finding shinies, she drops one of her own near a body so that he'll find it.

Among the bodies of the barbarians you find little more than trinkets and personal belongings—a couple carved wooden figurines (one in the shape of a human, another shaped kind of like a dog); a crude flute and necklace made from bone; and a lock of course, red hair.

The giants had sacks and pouches, which contain the following: a dented metal helm, which seems to have served as a bowl; a cask of ale, which is mostly empty; a stone-bead necklace; a 30-foot hempen rope tied to a wooden bucket; two worn tombstones; a giant-sized drum; and a giant-sized hammer & rock chisel.

Also scattered throughout the giants’ belongings are a total of 31 gem stones—sapphires, diamonds, rubies, and more precious & semiprecious stones, each one worth 100 gp in their own right.

Harshnag will get a blazing fire going. It is the size of a bonfire, though it is but a small campfire when compared to his size.

Rasa will aid Harshnag in creating and controlling the fire, using control flames as needed to contain it.

"Mi amigo muy grande, your arrival was, err, impeccably timed. I was worried for a moment we had seen the last of Big Blue."

Rasa will hold his hands to the flames, enjoying the heat at a closer proximity than most would be comfortable.

"Tal vez it is best if we tell you what we have been through so far, yes?" Rasa will use the cantrip to form shapes in the fire as he describes, secondhand, what Derrikoth, Nirzeg, and their former allies had seen since joining up ranks. He shapes the image of a fire giant storming into Triboar, the strange metal object that was dug up, depictions of their encounters with giantkin in the wilds of the Savage Frontier, the allies they met in Everlund, and finally, the cloud giants of the castle in Waterdeep, explaining to Harshnag what they had told them about the Ordning being broken, and the evil cloud giant who is kicking up all this trouble. He will lean on his allies to fill in the blanks for the parts he wasn't there for.

"You see, mi amigo, this has been quite the long road so far, but short of the untimely death of my predecessor, and the departure of two of our prior allies, I fear not much has been changed by our actions--not yet, at least. Pero, finding you might just by the spark that lights this fire--mas or menos."

You can tell that Harshnag is confused by the moniker “big blue” for several seconds. He looks around at all of you, looks at Derrikoth, does a double take, then thinks for a moment. “Ah...him. The Dragonborn, yes? Is that your name? Big Blue?”

Nirzeg scoops up the wooden figurines and crude lute and necklace if somone else doesn't beat him to the punch; smiling as he does, knowing money they were bound to bring in! The cask he rolls over closer to the fire at some point, intending to polish off, if noone else does so. But as things come to the gem stones....

"Hm... Will have to trade these in for coin the next time we're in town -- BUT-...five for everyone should do for now. Everyone but you, Big D. You get six. Unless-...." He calls up to Harshnag, asking if the giant might wish to have a cut of the spoils, or if some tradition might dictate otherwise. As soon as he had an answer, he works with Derrikoth on distributing the rest. Though, there is a moment where he gives both Swiper and Lydia a long look prior to sighing in somewhat feigned reluctance and following through on passing the stones over.

"Also yes. Or Big D, for short. I.... I'm not from this section of realm space, and certain words are hard for me to pronounce." Nirzeg says with some relunctance. "BUT IN ANYCASE! You ready to explain this whole giant upset that's going on?"

Derrikoth stands up as straight as he can, given his injuries, before addressing Harshnag, "I am certainly not 'Big Blue' or 'Big D'. I am Lord Derrikoth Toknal, something that these ones have conveniently forgotten on multiple occasions. I tolerate it, barely, in private, but there is something to be said about keeping up appearances in front of others."

When Nirzeg offers him an extra gem, he nods, thinking it his due, before narrating the beginning of their journey.

"We—and by that I mean Nirzeg and I—began with a few others in the town of Triboar. While we were there, fire giants attacked the town with a company of orogs riding on axebeaks, in search of some massive piece of Adamantine..."

"...one of the tasks we undertook afterwards was to deliver some leather harnesses. The recipients were the supposed 'Hunt Lords', though they were powerful undead. There, we lost a good man, Alus, though Rasa here has been doing his best to fill his shoes..."

"...once we arrived in Everlund, we were told of a way to travel nigh instantaneously to Waterdeep, where two more of our original members left us. Coincidentally, these... ones..." He looks up nervously at Lydia, "Arrived and... joined... this party. And then we fought some stone giants, and here we are."

Harshnag nods. In short fashion, he tells you what he knows: the ordning has been broken, and the storm giants no longer have the power to keep the smaller giants in check.

"To complicate matters, King Hekaton has gone missing. He's the king of the storm giants, and until recently was at the top of the ordning. Now..." Harshnag shrugs and shakes his head. "...Some other, less benevolent giants are vying for that spot at the top. I've been doing my part, killing the ones that I can, and was headed towards Waterdeep to deal with that cloud castle when I ran into you. But now that I'm hearing about the cloud giants from you, I am content that they aren't up to no good.

"It is a shame that the ones who attacked Nightstone got away...as is the decimation that has visited smallfolk all over the region. I was too late to save Goldenfields from a hill giant attack, and Bryn Shander was devastated by my own kin, agents of the frost giant jarl Thorvald." 

He takes some rations out of his pack as he continues in his soft-spoken voice. "But that is how I've come to be here. And it seems that destiny has brought us together, for we are of one purpose. That being said, I've had an idea. According to giant legend, there is an oracle housed in a remote mountain temple, built by my ancient ancestors. The temple is called The Eye of the All-Father, and it is located to the north, in the Spine of the World."

Harshnag clears his throat, a rumble that shakes the ground under your feet. "My idea is this: it is time to consult a higher power. This divine oracle is all-knowing, and so it will tell us how best to end the giants' threat to the North. I know the temple's location, though I have never been there myself. I should like to visit it, but I have a feeling that I will need worthy companions. I know we've only just met, but this is your fight too—will you come with me?"

Lydia pats Swiper on the head as the diamonds are distributed. "See my friend, you got some shinies today. It is a sign from Kord, that working with these people is for the best." She listens to everything that Harshnag has to say, nodding along. "Yes, my giant friend."

Harshnag brightens at Lydia's acceptance. 

"It won't be an easy journey. But you say you have an instantaneous method of travel? Teleporting, perhaps? Does it work for more locations than Waterdeep alone?"