Here's the omake I mentioned on discord last night. A bit low-effort but hopefully better than nothing.
Agmundr had worked hard to improve his fighting skills since they'd first landed here in 'Haskistadr,' as Ivor dubbed it (and which no one had thought of a better name for, at least in Agmundr's opinion). But he had been too occupied with helping clear the land and build the hovels that currently shelter most of the village. He had no chance to prove himself, as the mouth-tree was easily handled by Harald, Torgarr, Gefjosa, and Njal, and the great lizard was run off by the ones on watch before anyone else could arrive on the scene.
Agmundr wasn't as hungry for glory as he once was, nor as hungry as some of the other young men in the village, but even aside from that, he wanted to know what he could do, to better understand what he still needs to improve and how to improve it. So, naturally, the evening after Grimfari Jarl's speech for the fall turning, he went around the camp and surrounding land, poking and prodding the other men to see who would be up for some sparring.
He found Ragnarr first, who seemed as much interested in just making friends and having fun as anything else. Then the two of them were joined by Gunnar, who seemed quite proud of his own developments (despite, in Agmundr's opinion, about half of them being thanks to Hrolfr's ministrations) and looking to prove his general superiority. That was about when the three of them started discussing what the format of the spar should be, and after agreeing on some simple ground rules (no shaming blows, no shields to not waste wood, no intentionally breaking weapons to not waste metal, minimal dress to not waste cloth), the issue of how to match up fighters comes up. Agmundr proposes a free-for-all, a round robin, and ponders a two-versus-one, prompting Gunnar to jump in and call dibs on being the one.
They get into a bit of an argument about whether that's reasonable or not, which they're still going at by the time they recruit Ivor, immediately after which Gunnar all-but dares them to have a three-versus-one, which naturally causes the argument to flare back up, only capped off when Agmundr finally makes a proper bet with Gunnar. If Gunnar wins against him, Ragnarr, and Ivor each individually, Agmundr will forgo his land on the beach and be Gunnar's farmhand for a year. If Gunnar loses a single one of those matches, he'll have to take at least one other fighter as back-up when he goes to fight the great lizard that approached the village at the end of summer (which he was, stunningly, planning to fight alone).
The discussion continues, shifting to deciding between a two-round tournament or a round robin, the evening turning to night as the group eventually pulls in Kare and Moli as they drift eastwards into Ragnarr's clan's territory to begin pounding out a stage for the spars. Seeing their group has grown to six, Agmundr proposes they instead try a team fight, three against three, but this is quickly shot down by the rest of the group. It takes a while longer before the six of them are finally able to settle on a round robin, but by that time, the women and children are calling for their husbands and fathers to come inside for the night, so the group breaks up for now.
With a mixture of satisfaction and irritation, Agmundr learns the next morning that Gunnar is now apparently planning on bringing basically his whole clan along for the hunt, and is accepting anyone who wants to come along on top of that, and is going to be trying to build a pit trap (an odd choice for a beast that controls gravity, in Agmundr's opinion, but still better than running off and challenging the thing to a duel). He'd have to talk to him about the bet, though.