Changes

[[Samhain]] can only be released from Hell every six hundred years. It requires two powerful [[witch]]es performing three blood sacrifices over three days, the last day being October 31st (Halloween).<ref name="four07">[[4.07 It's the Great Pumpkin, Sam Winchester]]</ref>[[Lilith]] was said to be imprisoned deep in the pit by Azazel, claiming her release would not be easy.