The Mickels blood, known to some as the Otter's blood. It's a damn good source of Bolio/Tombstone blood with a nice kicker in there. It's hard to find because the few that has it, cherish it so much , they're afraid to lose it. I have it but I'm not afraid. It's just going to be a process to refresh the world's memory of the quality of the line , once I build an army of them.