How to Get the Osteo Striga Catalyst in Destiny 2: The Witch Queen

That Gun is Poisooooooooon.

Looking to upgrade your new Osteo Striga Submachine Gun? We have some good news for you! Bungie has, in fact, added a catalyst alongside the release of The Witch Queen expansion. So whether you’re a Destiny 2 catalyst collector or someone who wants to make your favorite weapon stronger, read on to see what this new catalyst does and how you can unlock it for yourself.

How to Get the Osteo Striga Catalyst

First, you need to unlock the Osteo Striga itself after completing The Witch Queen‘s campaign. Once you’ve crafted your Osteo Striga, you’ll notice that the catalyst is locked during the “Shape” process. To unlock it, you will need to reach Level 10 with the Osteo Striga you originally made. You can increase a weapon’s level by killing enemies with it, so just bring it with you while you’re running around the Throne World. Once you hit Level 10, just go back to the weapon crafter and add the catalyst onto your gun.

What Does the Osteo Striga Catalyst Do?

The Osteo Striga catalyst gives you 30 additional Reload Speed and a bonus 20 Stability; both are super useful for an SMG. More importantly, it also makes it so all of your Poison final blows return a chunk of ammo to the magazine, helping you reload even less frequently.

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How to Level up the Osteo Striga Catalyst

You can level up the Osteo Striga catalyst by killing foes with it. There doesn’t appear to be any kind of bonus for certain game modes or from the season pass catalyst progress buffs. You can just use the gun a whole bunch or grind it out quickly.

There are a lot of places where you can complete this catalyst, but you should note that the old Thrall hallway in the Shattered Throne dungeon has been patched to no longer grant any kind of XP. As a result, it may not count towards catalyst progress. Give it a shot, though! We are yet to confirm that the recent patch also disabled catalyst progress from kills. Because of the new primary infinite ammo addition, you can literally just stand in one place as lines of enemies run at you.

If you are unable to reach this location, then activities like the Blind Well and Altars of Sorrow are terrific alternatives. The latter throws huge numbers of weak Hive enemies at you, making it easy to complete this catalyst. Sadly, our other recommendation, the Kingship Dock Lost Sector in The Tangled Shore, has been vaulted with the launch of The Witch Queen. This was an extremely short Lost Sector packed with enemies you could swiftly go through in a couple of minutes. We’re working on finding new places to farm foes — in the meantime, use what you can of the information above.