Boulder

A Marvel creation from the fertile Bronze Age of 1980, Boulder was brought to life by the formidable creative trio of Mark Gruenwald, Steven Grant, and Herb Trimpe — serious comics pedigree right from the start. This rocky figure has kept some genuinely subterranean company over the years, sharing pages with the likes of Mole Man, Digger, Landslide, and Water Witch, suggesting a world of underground menace and geological mayhem. Though appearances in the catalog are rare — making Boulder a genuine deep-cut collectible — the character's footprint stretches across nearly four decades, popping up in Marvel Treasury Edition, Iron Man Annual, and the Avengers Epic Collection. For hunters of Bronze Age obscurities with real Marvel DNA, Boulder is exactly the kind of hidden gem worth digging up.