permanent knock immunity

[Cuchulainn]

hello,

is it possible for a lvl 60 knight to gain enough constitution points and +knock resist passive spell to be completely immune to knocks (even without warbanner buffs and defensive support)? For me it doesn't seem very logical, but I ask because it happens

the knight I used has a hit change of 189 and the particular enemy knight resisted more than 10 knocks (well but in the log it doesn't even say that he resisted it, but he wasn't on the ground either). I don't play very much, but I can't remember that I ever knocked this knight successfully down. I also doubt that he had the buff divine intervention. I used several times MS 5 on him and he was alone. And prickling ivy from an ally mage worked on him.

Maybe there are any abuse possibilities to gain a 100% knock resist rate even without the offensive war banner buff or DI. Or is it even possible via gear and the +passive resist spell?