At first, don't rush to change the ingots into copper coins to buy gems. You should change all the rebates or ingots given to you by the 88 Fund into four-image maps to dig for treasures (because whatever is dug up by four-image maps is more profitable than directly changing copper coins). Dig up good gold cheats and recharge tens of thousands of pieces at once.
It is suggested that all the excavated golden feathers be reserved for upgrading the golden weapons, because the replica weapons and battlefield weapons of this game have no special stunts even if they are advanced, so the golden weapons before at least level 80 are the best choice, and it is not difficult).
3. Everything dug up in the four images is sold first except feathers (golden weapons can be upgraded to level 60 for free, level 70 needs 1 feather, level 80 needs 2, and so on. The obtained silver tickets and coins can be exchanged for copper coins first, because there is basically no place for civilian players to use silver tickets every day, except for tens of thousands of silver left in some mission packages.
4. Improve attributes. Copper coins are preferentially spent on precious stones. The highest level is 80, and you can hit five-level gems all over your body. This is very simple and not expensive. Then, select the device. Buying a copy is not recommended. It's too much to brush.