X-Factor Volume 1 #4 May 1986, “Trials and Error!” Story by Bob Layton. Art by Keith Pollard and Joe Rubinstein. Cover by Ron Frenz and Joe Rubinstein. In order to find and protect fellow mutants from growing mutant-hating hysteria, the original X-Men, Cyclops, Angel, Beast, Ice Man, and Jean Grey, formed X-Factor. Now, they race against the clock to save the fire-starting mutant Rusty from a super-strong mutant named Frenzy.