Wardenplume Vigil is a Demon Unique helm with no boss attached: it drops anywhere in Nightmare, most often from N7 up (rarer below that home difficulty, never above it), and nowhere else. Every copy is item level 100, and there 0.3% of what falls comes up Unique. It is built on Sovereign Wardenplume Helm — step 6 of the Wardenplume Helm line, item level 80 and up.

It always rolls the same numbers: +44 Armor, +40 Ward, +327 Maximum Health, +60 Armor, +60 Ward, +260 Armor, +658 Ward and +63% Guard Power.

One Unique drop in 40 is a Mythical copy: the same item carrying 15–25% Mythical Energy that boosts every stat on it and can never be changed; the 15% floor is 10 times as common as the perfect 25%.

On top of that it carries Wardenplume Vigil — Special area radius +25%; +15% Ward.

“The plume is a promise: nothing passes while the warden stands.”