Quality gem buff from Druid basic attack like Rend, Shred, Maul? (Solved)

https://imgur.com/gallery/yV4b29g


Can someone please explain how we get this buff? I tried using gemcutter the normal way you would but it does not work.

I posted this on bug thread and GGG doesn't respond either. Is there a way to ask the dev team directly about this? I can't seem to find anything in game or website explaining how to get buff on normal attack.

If someone figured this out, please let us know!

For anyone who is confused like me, someone pointed out on reddit that this buff is obtained through new lineage support gem to socket into the basic attack or obtained through passive tree nodes that increase all skill quality. Tysm for them but at least we know that this is not a bug anymore. Cheers all~