The Incredible Hulk Vol. 1 (1962-1999) #156

Plot

Hulk arrives on Jarella's world with the mental acuity of Bruce Banner; He finds the city of K'ai in ruins and discovers that Jarella has been captured by the treacherous Lord Visis; Hulk rescues his lady love and leads her people in revolt; That is, until Visis teams up with master assassin Krylar who has a weapon that makes one battle one's darkest fears; The weapon is turned on the Hulk and Hulk with Banner's mind finds himself facing his old brutish self; Jarella's magicians counter by ending the spell that makes Hulk smart; Pym's serum wears off and Hulk grows back to normal size.