I saw a Strange Specialized Killstreak weapon I'm considering buying off the Steam Community Market, but I was wondering if I could use the Festivizer on it without removing the Killstreak.
The wiki said it kept qualities, so the Strange part still applied, but it mentioned nothing about keeping the killstreak on it.
In general:
Festivizers, name tags, description tags, filters, paint, strange parts, and killstreak kits (all 3 kinds) are all independent of each other. They can all be applied and removed independently of each other. The only exception is a strangifier, which when applied is permanent.
I received my first festivizer recently and wanted to use it to festivize a weapon. To my surprise, only a few weapons could be used with the fesivizer.
Here's a link a later found with all the items you can use it with. Sadly, i can't just use it with anything. https://wiki.teamfortress.com/wiki/Template:Festivizer
For the weapon you were planning to use it with, make sure you CAN festivize it before buying it.
