"Tyrannosaurus Reich" from Major Bummer #5 (DC, 1997) by John Arcudi, Doug Mahnke and Tom Nguyen
The only bad thing about Major Bummer, really, is that it lasted a mere 15 issues. If you don't know it, it's about a hardened slacker who is accidentally given super-powers by aliens. Doug Mahnke art, a fun supporting cast and villains, and well-observed humor. It's been out in trade since 2011 as The Complete Major Bummer Super Slacktacular. Seek it out!