It's Adventure Time with.... Howard the Duck #1

In "Pop Syke - The Consciousness of Success," Howard the Duck stumbles into a bizarre new trend when his friend Bev embraces the self-help mantra of the enigmatic "Pop" Syke. When Howard uncovers that Pop's success-boosting devices are secretly manipulating minds to steal, he races to expose the truth—only to find himself trapped in a lecture hall where Pop's influence turns the crowd against him. Written by Steve Gerber and illustrated with sharp, moody precision by Gene Colan, this 1978 issue delivers a surreal, satirical twist on the self-improvement craze, all under Colan’s striking cover art.