If leaves grew on the ground, and dropped to the brances.
Another way to increase the random factor, d100.
All bonus's stay the same, add 50 instead of ten to DC's, and have fun.
multiply all threat ranges by three to five, depending on style of paly.
So a great axe crits on 97%, 96%, or 95%. A Rapier crits on 91%, 88%, or 85%.
Hows that for random?
By the way... They really make a d30? I have never seen one...
For heroic champaigns, roll 4d6 drop lowest for every roll.
hhmm... Personally I don't like how big a difference in rolls are at level one, and how small the are at level 20.
Level one through five characters should roll 1d6
Six through ten get the d12
Eleven through fifteen get the d20
sixteen to twenty get the d30
After that, you get the d50!!
But then problems arise when a level six character fights a ogre... {CR4, I think. Ok, I'm pretty sure, no books ATM}
-Sravoff