Selling 15% onslaught on flask use stygian belt (vet help as well)

Selling a styian belt I found, I'm honestly not sure what this mod is priced at as I went through about 50 pages in the market place and couldn't find one so if there are any vets that could help me with the price that would be absolutely amazing. (Not worried about the craft mod I plan to remove it myself before its sold)

sry not being offensive on purpose...
this belt may be just a vendor food

Not offended bo worries haha like I said pretty new, just seemed like a really good rare mod. Just rather be safe then sorry haha... well assuming the other mods were not complete trash what does that mod fetch for? Or is it just not that sought after?

You can use silver flask to get "onslaught" buff for 100% chance, so this mode is not useful.
The so-called "good" modes on belt should be
1. life (80+), 2. resistance (80+ in total ), 3. dmg (30%+ elemental dmg or 20%+ phy dmg )