There needs to be different colors on the map that indicate drops. For example: brown = public drop, purple = soulbound, etc. It's annoying when I hear something drop in godlands but I can't figure out where it is.
I think luck should work this way:
0 luck has no bonus and gives you no ranks
1 luck is +5% attack, +1 rank
2 luck is +10% attack, +1 rank
3 luck is +15% attack, +1 rank
4 luck is +20% attack, +1 rank
5 luck is +25% attack, +3 ranks