tarrangar
Fat arctic chicken
Comparatively suck, Unsullied aren't exactly bad at single combat, but they suck at it in comparison to their group fighting abilities, an average Knight should be level 2-3 in Fighter, and they can win in sole combat against an Unsullied, even if you don't give the Knight superior equipment, but if you pit a hundred such Knights against a hundred Unsullied then the Unsullied will win soundly, even if you up the Knights average level by 1, the Unsullied still win, Unsullied don't exactly suck in single combat, but they are an extreme amount better at group fighting.I have no idea where you get that information from. I'l not calling you a liar, but I somehow absolutely didn't get that information in canon. Did I miss something? Does Grey Worm secretly suck?
And with how I'm proposing thing work, Unsullied are universally high level, compared to the average of pretty much any other class, but 2 levels in Unsullied, only count for 1 level of Fighter in single combat, meaning in a fight between a level 6 Unsullied and a level 3 Fighter, it's a coin toss which of them win, in group combat however the Unsullied are about as good as Fighters, still not better but as good, and there's not a one amongst them below level 5.
Grey Worm is a champion Unsullied, so he's probably level 7 or 8, meaning he can take on all but elite Knights in single combat, and is absolutely devastating when fighting in formation.