This is always a divisive topic, but this seems like a pretty good way to fix it. Other RPGs have done this for a long time. It's like enchanting a weapon. We need items that infuse a weapon with an element. One for each element. A one time use consumable for an irreversible process that makes whatever legendary gun the element you want. This will let you use any weapons you want, have more control over your arsenal, and have something useful to chase. It would be a lot of fun to build different load outs with our preferred weapon types. It solves many problems. Make it rare, but let it drop from many places, including activities that used to give elemental primaries so they feel rewarding again. Nightfalls - Really need something cool like this to make them worth the time. Kind of like how they used to drop etheric light sometimes. Flawless trials - Make it drop from the chest. This makes trials more rewarding like year 1. Raids - really a no brainer. Each boss could have a chance to drop one, or maybe the challenge boss drops one each week. It's the best of both worlds. You aren't being forced to use the same handful of weapons for their burns. This helps weapon diversity without just throwing out burns.