Hi, I was just looking at some of my old beys and I was looking to sell since I'm going off to college. Problem is I'm not 100% sure of the value. 

I have:

• Drain Fafnir 8 Nothing(Core is kinda scratched up but otherwise fine)
  
• Xeno Excalibur(paint on tip is slightly coming off)
  
• Lost Longinus(paint on middle ring which i forget the name of is coming off).
  

Still have the launchers for all of them and they are all from Takara Tomy.

For Drain Fafnir - around 20 dollars
Xeno Excalibur - 30 dollars
Lost Longinus - around 20 dollars

(the prices are from mall of toys)