Discovering how to beat Gladius in Elden Ring Nightreign is your first major trial, and honestly, it's one that might cause many players to bounce off the game entirely. The trickiest thing about Gladius, Beast of Night, despite his hefty health pool, is that he transforms from a three-headed dog into three one-headed dogs, and everything gets a bit chaotic from then on.
In a game where coordination is key, if you're playing randos, you're going to have a much harder time against this boss. Still, there are things you can do to make the fight easier. Did you know, for example, that each Nightlord has a weakness displayed just next to their portrait when you launch the expedition? Finding a weapon of this affinity is a good start.
