Up the max number you can /roll without dice to 20

Description:

Currently you need the dice from the casino to roll past a certain number (I think like 10). Being able to roll a D20 without it for things like medical RP is fun as hell. It's also still low enough to where people can't do devil's dice without them.

Reason

I miss being able to roll a d20 for my characters and a 5k die feels like a lot just to roll that low of a number.