Grandslam

Debuting in the pages of Marvel's The Transformers #47 in 1988 — right in that fertile Copper Age stretch when Bob Budiansky and José Delbo were cranking out some of the most memorable entries in the roster — Grandslam is a figure who shares fictional real estate with absolute titans of the Transformers mythos: Optimus Prime, Megatron, Starscream, Soundwave, and Blurr. That's rarefied company by any measure. With appearances collected in the Transformers Compendium and a presence that stretches across an impressive 37 years of publishing history, Grandslam is the kind of deep-catalog character that rewards the devoted collector who wants to know the full breadth of what this universe has to offer.