Here is a little spell that will let you introduce a random element into your magic by specifying a blockheight. It will identify a Bitcoin address from a supplied list such as a SIL, LBL, LRL or a LSL. The odds of each address to be chosen depend on its corresponding value.
The results of the this spell are unpredictable for blockheights that have yet come to pass, but once they have been set into stone, they will never change. The chosen address will be revealed when the blockhash spins the wheel of destiny!