Curse of Osiris brings a much-needed addition to an unrepresented weapons class in Destiny 2 with the Prometheus Lens exotic trace rifle. Previously, the only weapon in this category was the PS4 pre-order bonus weapon Coldheart. The Prometheus Lens is Coldheart's solar-based brother, though it has its own unique abilities that keep it from just being a reskin. Read on below for details on how to get the Prometheus Lens exotic trace rifle in Destiny 2 Curse of Osiris, what makes it different from Coldheart, and if it has a weapon ornament.
How to Get the Prometheus Lens Exotic Trace Rifle in Curse of Osiris for Destiny 2
Trace Rifles are a type of weapon you typically either love or hate. I used Coldheart a lot when I first started playing Destiny 2, but the need for pinpoint accuracy didn't really fit my spin-around-in-circles-pull-the-trigger-till-everything-is-dead-type play style. A good indicator of whether or not you'll like using the Prometheus Lens exotic trace rifle in Destiny 2 is if you liked Coldheart. If you did, Prometheus Lens is similar but has slightly different perks that make it the better weapon.
The Prometheus Lens exotic trace rifle has good range and stability, average handling and reload, and terrible impact. Typically, I wouldn't go crazy if I saw those stats on an exotic, but trace rifles are unique. The Prometheus Lens has a particular trait that makes it unique among the weapons added to Destiny 2 with Curse of Osiris.
This weapon can fire a steady beam instead of individual rounds, which according to the game is equivalent to 1000 rounds per minute. It gobbles up its 77 round magazine pretty quickly, but one of its special abilities will return ammo to the magazine as you rack up kills. This keeps the beam going longer and plays into the unique perk of the Prometheus Lens.
The Prismatic Inferno ability generates a heat field that grows larger the longer you fire the Prometheus Lens. Unlike Coldheart's ability, Longest Winter, that requires you to remain on target, it seems like Prismatic Inferno is triggered whether you're hitting an enemy or not. Of course, with the ammo replenishing capability that is triggered with each kill, the longer you can keep the beam going. The longer you keep the laser going, the larger the area of effect heat field gets, and the more enemies you can damage.
You'll have to reload sometime, but Prismatic Inferno makes the Prometheus Lens exotic trace rifle excellent against large groups of weak enemies. So, when compared to Coldheart, even though the Prometheus Lens is similar in operation, it's strength is the opposite of that weapon.
Again, you'll be fighting the RNG for this weapon, just like you have to the new Crimson exotic hand cannon. Whether or not you have more of a chance to get this in an exotic engram found on Mercury or not isn't known yet. I'm willing to be that it's just been added to the overall exotic RNG pool as long as you have Curse of Osiris installed, but your results may vary. You'll just have to keep playing Destiny 2 and keep your fingers crossed that the next drop is the one you want.
Destiny 2 Curse of Osiris Prometheus Lens Exotic Trace Rifle Ornament: Eye of Osiris
I think the Prometheus Lens looks pretty generic in its base form, so I'm glad it gets a decent weapon ornament. The Eye of Osiris weapon ornament gives the Prometheus Lens a look more in line with the rest of the Curse of Osiris Destiny 2 expansion. I'm not sure why they didn't just use Eye of Osiris as the base design, but of course, Bungie isn't really asking me input for weapon design, so maybe they know something I don't.
Right now, the only way to get the Eye of Osiris weapon ornament for Prometheus Lens is to hope the RNG smiles on you when opening an Illustrious Engram, the replacement for Bright Engrams in Season 2. You get these the same way as always. Either pony up real cash for Silver premium currency yo buy them from the Eververse, or fill the level bar to get a free one.
Bungie hasn't revealed whether or not the Prometheus Lens will be available from Xur soon, so you'll be grinding for it for now. The Eye of Osiris ornament will likely come to the Eververse eventually where you can buy it for Bright Dust, so keep checking back weekly for that.
For more info on Destiny 2 Curse of Osiris and other great games, check out our guide section.