The Lumina - basically the polar opposite of the Thorn in both lore and gameplay - has been released, and you're going to have to strip the Weapon of Sorrow of its corruption if you want to get your hands on the wonderful new exotic handcannon.
Here are the steps you need to undertake to collect the healing weapon:
1 - Collect the Quest
To get the quest for the Lumina, travel to the Salt Mines in the EDZ. Once there, head through the double doors marked "Salzwerk" and travel down the halls until you find a broken elevator. jump in the teleporter near the elevator, and land on a bluff above the mines.
Here you'll fight through some Fallen near abandoned cars, before coming across a wall with guard rails on it. Follow these rails, and you'll find a small path leading to a narrow passage. In this passageway, there'll be the old Guardian campsite where you first found Thorn in the burned-out fire of the set-up. This time, there's a chest. Inside: the Lumina quest start.
2 - Find the lost Rose
After receiving the letter from Shin, you'll need to use your calibration device to uncover a secret chest in a Lost Sector. The quest text from Shin reveals the exact Lost Sector, where you'll find a rose-emblazoned chest with the treasures within.
3 - Grinding Orbs of Light
Here's the first grindy part of the quest path. You have to produce 250 Orbs of Light before you can move on. This step coughs up the Rose itself, as well as three new quests that set you on your merry way for the full-powered Lumina.
Your new Rose doesn’t have any perks on it. We’ll need to fix that before we can make Lumina. You have three quests to tackle at this point, and you can do them in any order you want.
4 - Perk up the Rose
The Rose is sweet, yeah, but it doesn't have any perks on it yet and that isn't going to do anything to help you get the Lumina. The order of these next three are optional, you just have to complete them all before moving on:
- Band together: Complete a 50,000 point Nightfall.
- Face the Hordes: Complete 35 points worth of Blind Well, Black Armoury Forges, or Escalation Protocols. The heroic version of the Blind Well is probably best for this.
- Defend the Light: Kill 100 enemies without reloading your weapon. Bring an auto rifle or a big heavy machine gun for this step.
5 - Growing the Rose's power together
This next step after the mini-quests sees you have to complete activities while using the Rose, and bagging kills. Jump in a four-man fireteam to crack this out faster, because being in a group for this adds bonus percentages to both the objectives.
6 - The toughest step - Gambit denial
We aren't going to lie - this one is the toughest step. You have to jump into Gambit and deny enemy Guardians - make sure they don't kill any of your teammates - all while wielding handcannons. You also have to generate 50 Orbs of Light for your teammates and get Guardian kills in any playlist. All in all, this one is going to take a while if you haven't got practice in Gambit, or are coming up against deadly invaders. Even just having unaware teammates makes this one tough. Good luck.
7 - Plucking the Rose
Once you've completed all of these steps, you just have to charge the Rose to full power with Hive crystals. You have to destroy 11 of the crystal scattered around the Will of the Thousands strike on Mars, and they all have to be completed on the same run, and with the Rose.
Once you've finished that, finish the Strike by eliminating Xol, and you'll have the Lumina.
With Rose in hand, you’ll need to charge it with Light. Head into the Will of the Thousands strike on Mars. Equip your Rose and go through the Strike, destroying 11 of the various Hive crystals scattered around. You can only kill them with Rose, and you can’t kill 10 on one run and then one more on the next. They all need to be in the same Strike.
Check out this YouTube video if you're having trouble finding them:
After that, you're done! Enjoy your brand new Lumina handcannon.