One of the most important rules of this PKRI is the Silver Skull+ Rule.
What does this mean?
Well, when you enter BH you get a skull over your head, and it changes colour depending on how much you have on you (the value of everything you have combined).
If you have a set of full rune on you, that's already a silver skull. So this rule is pretty much in place to make sure people from both clans do not 1 item or wear junk gear. It is very important that you make sure you have COMPLETE rune sets when you come in.
IF YOU EVER ENTER THE BH CRATER AND YOU HAVE A BROWN
SKULL, EXIT RIGHT AWAY AND BANK FOR A SILVER SKULLSilver = good =

Green = good =

Blue = good =

Red = good =

You really shouldn't ever have a red or blue skull either. That means you've looted, or are wearing some expensive rune armour (god armour, gold trim, etc) which isn't nessesary.