These are the wings of pratiya-samutpada, the truth of interconnectedness. The everywhere Light.
This helmet is a subclass neutral exotic which means that it can be utilised with any Warlock subclass. It has the exotic perk, Keeper of the Pack which allows you to revive teammates faster and be revived faster yourself. On top of this, Supers generate an extra orb. This helmet is one that can be quite useful in particularly niche situations. From a PVP standpoint, this helmet is a very viable choice for game modes that allow for revives, such as Skirmish or Trials of Osiris, as that quicker time to bring a team-mate back to life can be the difference between victory and defeat. This helmet is more leaning towards being a PVE exotic though, as the faster revives is quite useful in strikes when a fireteam member goes down and the extra orb can help to get your fireteam’s Supers full.
This exotic gives off an aura of something unknowable and mysterious. The wings along the side seem to almost be a variation of the Ancient Greek laurel leaves that were given to Olympic event winners which is appropriate for a champion of the Light. The large visor is broken up by the downward zig-zags that break up the monotony of the black.
How to Acquire It?
The Light Beyond Nemesis can be gained from an exotic helmet engram or purchasing it from Xur if you are lucky enough for him to have it in his inventory.