Aight so, basically I think more enchants kind of things would be cool. Having like coin type monsters is stupid so, how about "any runes". You can drop these from idk what kind of mobs. They are used on items from a specific dude and when used they have a chance to get any kind of enchant that runes would give, AND new kinds.
New enchant ideas
Coin increase, ONLY for swords
There are different levels and so higher level = higher multiplier of coins dropped by mobs.
Speed Boost, ONLY for boots
Just increases your speed based on the level of the enchant.
These are just some of the notable ones I came up with. There is so much open ideas from this idea, you could add like faster hit speed and stuff too.