Been maining boss runs for years, and the way
the binding necklace behaves in fights is one of those subtle things that separates a sloppy kill from a clean one.
From my runs, the necklace is basically a proc-based utility: every so often it will trigger a binding effect on the boss that pins them in place or slows their movement for a short window. That small pause can be huge — it gives you extra time to stack damage, reposition, or avoid a nasty mechanic. It doesn’t usually stop a boss from doing its
scripted attacks or entering new phases, though; think of it more as a mobility-control tool than an immunity breaker. Some bosses are immune to control effects during certain phases, so you’ll notice the necklace feel useless at times because the boss is untargetable or in a scripted animation.
Tactically, I treat it like icing on the cake: don’t depend on it to win a fight, but use the proc windows to reset agro, close distance safely, or line up big specials. It rarely stacks with other bind-type effects, so if you’re already using spells or abilities that root the boss, the necklace won’t double-dip. Personally I love how it rewards patience — seeing that little freeze at the right moment feels clutch and keeps runs smooth.