In the pokemon games, you would normally recieve prize money after a battle. I think this should be able on the server.
Whenever a gymleader, elite or champion is killed, I think that the challenger should recieve prize money based on the boss' power level. I understand that you cannot make it so that mcmmo changes, so instead, it could be simpler.
I think the prize money should be the boss' powerlevel rounded to the nearest thousand, divided by 10.
For example, someone with the power level 1337 (:3) would have their prize money set to $100.
Someone with 3697 power level would have it to $400.
An admin would have to be acknowledged whenever a gymleader/elite/champion's power level would excel a power level of 1500, 2500, 3500 etc.
This would probably be hard to code, so if you guys cannot do it, I won't be suprised.
One problem I see with this is that a gymleader could just let themselves be killed and then make the killer pay them some of the money. This should be a bannable offense.
Furthermore, I think this prize money scenario should only be activated with /count, because otherwise this could just be a money maker in general pvp.
There's more.
This isn't as necessary, but I think it would be pretty cool if you could set a rival, so that when you kill a certain player (Which you have set as a rival), you'd get their prize money, too. I think you should be able to set up to three rivals. Again, this would only be activated by /count.
The prize money would not come out of the other person's balance, it would be generated seperately.
Good idea? Bad idea? Let me know in a comments below, so remember to keep looking at my suggestions and I will post more in future.