Dear Riders,
in this guide i just wanna explain the Gem-Fusion.
This just work with the normal Gems. (Non-Ultimate-Gems)
For reinforcement you need 2 items to make it work:

First of all the gem. In this example its a physical attack %, but can be anything you want or need. (like HP, DEF, etc.)

Thats the stones you need to reinforce the gems. (you can get it via different events or login-rewards).
When you get both items, lets gonna start. First of all press Ctrl + rightclick on your item and a seperate reinforcement window will open.

Put in both items now:

If you go on the questionmark you can check which stats you can get from fusion.

Then press fusion and lets see what you get. This process can fail. If you dont like the rolled stat you can reroll it just with another press on fusion.


So be ready and improve your gems :)
Good luck in rolling guys
Greetz Ara