price check on a 15 greater than 50 storm bow

hello, whats a storm bow
req 13
15 ^50
health +25 storm bow worth

i really have no clue and any help would be great

maybe 2k. if it was req 8 , worth 500k~ and req 9 around 200~ but req 13... not worth it imo.

I sold one for 50k (req 13 15^50) if you try you could get that