Skale Venom?
You are indeed a day late and a dollar short. They were locked out of WvW last patch. At least these things are useful in PvE still, though.
They were disabled in WvW in Tuesday’s patch.
https://forum-en.gw2archive.eu/forum/pvp/wuvwuv/Regarding-consumables-in-WvW/first#post1489600
It was also vaguely and poorly communicated in the patch notes:
Removed the ability to use many karma related items in WvW.
[KnT] – Blackgate
Nerf, yes. Stealth, no.
It was announced a few days prior to the patch on the 26th that these would be removed and again mentioned in the patch notes.
https://forum-en.gw2archive.eu/forum/pvp/wuvwuv/Regarding-consumables-in-WvW/first#post1489600
Just about every consumable that did stuff violently was removed.
But not my fireworks. And that makes me happy.
Darxio – Thief Commander