The weird thing would be it prioritizing the bird over the two more dangerous people there.
So what the fuck happened that it apparently flipped its shit and prioritized Aki's bird hard enough that it could just effectively one-turn-kill it?
Well it does have 6 attacks.
How the fight probably went was..
Round 1
Threaded Man goes for Tryggr first because Tryggr goes Leeroy Jenkins on it.
Tryggr gets in first, because he's drunk. He attacks and gets multistabbed with what is presumably a very suboptimal plan, but survives due to a combo of armor and some luck.
Trausti gets in with a whole ton of attack spammery. Deals no damage.
Aki attacks and deals some scratch or no damage. Aki is eager to prove himself so he probably spent a bunch of Orthsirr on making good attacks, but less on defence.
Round 2
Threaded Man decides to deal with Swordraven first because it's annoying, and more importantly actually can do damage to it.
Aki attacks, and is immediately hit by 3~6 of the Threaded Man's attacks. He goes down immediately, because he's just thoroughly outclassed and probably didn't spend a ton of dice on defences, and didn't have the Orthsirr to make up the difference.
Trausti is pissed and nukes Threaded man with a gigablock of ice, since low damage attacks do fuckall. It gets through since the Threaded Man has used up its Perfect defences and Trausti is putting a ton of Orthsirr into the attack.
Round 3
Trausti burns a ton of Orthsirr for attack/defence, but still eats 2~4 attacks from the Threaded Man, blocking the remainder. His armor is gone, and he's taken some Endurance damage.
Round 4
Trausti goes full defence and burns Orthsirr nonstop to not die, but still eats 1~3 attacks to the face. He's now down to like 1 or 2 Endurance, and his armor is shredded and is probably out of Orthsirr.
Halla arrives.