Even if it's not just a guide, "119" is a silly concept. Delve weapons, Delve II, Ambuscade, Alluvion Skirmish gear, Sinister Reign, level 119 UNMs, level 135 UNMs, all of it drops gear labeled with the same number but Delve gear is not remotely as powerful as Reisenjima gear.

That said, they did just introduce very exciting stuff through Ambuscade. We shall see.