Lady Sif

Few corners of the Marvel Universe feel as mythically rich as Asgard, and Lady Sif has been one of its most enduring presences since her Bronze Age debut in The Avengers #105 in 1972, brought to life by the legendary creative pairing of Steve Englehart and John Buscema. Over more than five decades she has kept remarkable company — sharing pages with Thor, Thor Odinson, Loki, Volstagg, and Hogun — placing her squarely at the heart of Marvel's Asgardian mythology across titles like Immortal Thor, Thor, and Doctor Strange of Asgard. That kind of longevity, stretching from 1972 all the way to 2026, speaks for itself: Lady Sif isn't a footnote in the Norse corner of the Marvel cosmos, she's a fixture of it. For any collector drawn to characters with genuine staying power and mythic gravitas, she's absolutely worth seeking out.