[Notice] Master Key Level Limit

Really....
Lame.
Maybe NX fraud is a problem?
Make a mule fraud it up use the keys trade the items?
Anyway- level 30 is easy AND
unless you are buying boxes you'd have to be 30+ to kill for them (including Leps)

Not so. The boxes drop from Evil Eyes and Jr. Lioners, which can be killed by under-30s.