There has been cases of certain weaponss, such as spirit weapons or arcanium weapons, fusing with their owners after being infected.
So, we’ve already seen the effects of stuff affected by the dark sea magic pollutioon, changing its appearance, i guess the same would happen with Atlanteans.
IF someone was to kill an Atlantean & steal their weapon, for example from the infected Kai Sabre, and use it.
What kind of effect would happen? Would they be infected instantly or have a limited amount of usage of that weapon before needing to stop using it temporarily? I mean, using a blade thats mixed with the mutated flesh of someone else can’t be good