I've just made an addition to the My Collection feature of the GoW Database that might save you some time. The site can now update your Hero data automatically whenever you visit! This provides several benefits, not the least of which is that all the edit fields become read only and you don't have to type anything in anymore.
To do this, you'll need to link your Gems of War account with your DB account. You can get there from your Account page, or from the My Collection page, or directly via here:
To link to a Gems of War account, you'll need to provide your invite code, as well as your current exact in-game gold and souls total. After you've confirmed, just head back to the My Collection page and you'll see all your info up-to-date every time you refresh.
Please note that this feature works only for PC/Mobile users. Console users, unfortunately I don't have the data to support you yet.
Let me know if it works for you, or not!