Kraken

Surfacing in the thick of Marvel's Secret Empire saga, Kraken made their debut in 2017's Captain America: Sam Wilson #22, a creation of Nick Spencer and Sean Izaakse born straight into one of the Modern Age's most ambitious and politically charged storylines. With only three catalogued appearances, this is a figure who cuts a sharp, concentrated presence — sharing pages with titans like Captain America, the Hulk, Spider-Man, and Carol Danvers, as well as the sinister Daniel Whitehall, which tells you something about the charged company Kraken moves through. Rare and tightly woven into a landmark Marvel event, Kraken is exactly the kind of discovery that rewards the deep-diving collector.