I just spent 450 gold to go from 18% extra damage on my sword, down to 7%. Then I tried again, for 900 gold, and it went down to 5%. That's ridiculous, and it makes me never want to "upgrade" again. It says "strengthen my weapon". The button to confirm says "enhance". I wasted money and wasted time on something that does the exact opposite of what it says. This game had promise, and I was enjoying it. but the further I go, the more problems show up. Not going to keep trying to make the game work anymore.