Selling items

Selling high items later in the game is main source of income. Higher the item, higher the price. It is not worth it with low items, dont know the break point from where it is worth it. If you upgrade the item, its price is even higher.

To craft +10 weapon, you need 1 040 items. Which is no small feat, takes lots of time and resources. Just in case you wonder, to make +20 item, you need 1 040 000 of that items.

I used CUTTER for this up to +9, it doesnt require any legendary resources, only low tier ones, which I have 9999 all the time.

Upgrade cost might be different, 445 500 is gold if you succeed 100% all the time, which is not going to happen, but its still worth it.

Basically, if you craft 520x Cutter, you can sell it for 8.1 millions, but if you ugprade it, you can sell it for 14.9 millions, which is over 6 millions more. The only downside, takes lots of time. I didnt timed it, but I would say about 90 minutes. The power-up is pretty annoying feat in the game for my taste.

For small comparison, single Thor's hammer +8 is worth 27.4 millions, which is almost double compared to Cutter. Upgrading price is almost the same, starting 180. Problem is, it requires 2 legendary resources. Doing this with last 2 items is not worth it unless you already have all the medal purchases. These items requires resources you can only buy from merchants and they cost medals. But Excalibur is 10x more expensive than Cutter.