Stein is traditionally the Big Bad in HCL. Other evil characters have come and gone, such as Darkside, the Primal Cucumber, God-Matt, the Dragon Emperor, the Daemon, Mia, etc. But Stein was the first evildoer so Big and so Bad that he f*cked up everyone else's characters to such a point that everyone had to gang up on him. He was the kind of character that made you pick which characters you didn't like much and put them on the front line. He is THE Big Bad, now and forever, sheerly because no other villain has reached that level of fear not for the character, but for the player. As a vow, when playing Stein, I never back down from permanently and perhaps lethally maiming any characters that dare refuse to flee immediately.