🎁 Utilize the convenient eBay links for ANY purchase at NO additional cost to you and help the continued development of Key Collector Comics. 🔔 Subscribe for just $1.99 per month or $19.99 for the year (about a nickel per day).

Clicking on the eBay link and making a purchase may result in this site earning a commission from the eBay Partner Network.

Marvel ⋅ 2008

Low
$1
Mid
$2
High
$3

Key Facts

1st appearance of Kelda Stormrider, an Asgardian elemental goddess

Low
$1
Mid
$3
High
$12

Key Facts

Dani Moonstar becomes a Valkyrie

1st appearance of Brightwind, the winged horse of Dani Moonstar

1st appearance of Mist, a Valkyrie

1st appearance of Axe, a Valkyrie

1st appearance of Hrimhari, Asgardian prince of wolves

Marvel ⋅ 1966

Low
$40
Mid
$120
High
$400

Key Facts

1st appearance of Ares, Greek god of war, in Marvel continuity

1st appearance of Hermes (Mercury), messenger god

1st appearance of Hera, the wife of Zeus

1st appearance of Dionysius, god of wine

1st cameo appearance of Artemis (Diana), goddess of hunters

1st cameo appearance of Hephaestus (Vulcan), weapons-maker of the gods

1st appearance of Harokin, a deceased Asgardian adversary to Thor

1st appearance of Tana Nile, a Rigellian colonizer in disguise

Low
$5
Mid
$15
High
$50

Key Facts

1st appearance of Emily Bright, a girl who has been aware of her magical powers since birth

1st appearance of Doyle Dormammu, the illegitimate son of Dormammu

1st appearance of Shaylee Moonpeddle

1st appearance of German Aguilar

1st appearance of Zoe Laveau

1st appearance of Alvi and Iric Brorson, sons of Asgardian, Bror

1st appearance of Guslaug, a Frost Giant

1st appearance of Toth, a crystal warrior

1st appearance of Calvin Morse and Dessy

The Strange Academy preview was featured in multiple issues but the first four titles that went on sale with the preview on January 29th, 2020 were Thor #2, Ravencroft #1, Doctor Strange #2, Avengers #30

[December 2024 - a Strange Academy TV series is rumored to be in development for Disney+]

Marvel ⋅ 1975

Low
$3
Mid
$9
High
$30

Key Facts

1st appearance of Seth in the Modern Age

1st appearance of Mimir, uncle of Odin

Marvel ⋅ 1984

Low
$1
Mid
$3
High
$12

Key Facts

Origin of the Odinforce, the combined power of Odin and his two deceased brothers, Vili and Ve

Low
$1
Mid
$2
High
$4

Key Facts

Mjolnir transorms into Undrjarn, the All-Weapon of the Valkyrie

Marvel ⋅ 1982

Low
$1
Mid
$3
High
$12

Key Facts

1st appearance of Demogorge the God-Eater

1st full appearance of Apollo, god of light

Origin of Gaea, Chthon, Set and other Elder Gods

Includes the first map of Asgard

Marvel ⋅ 1980

Low
$1
Mid
$2
High
$10

Key Facts

1st cameo appearance of Vidar, half-brother of Thor, son of Odin and the giantess Grid

1st cameo appearance of Magni and Modi, sons of Thor

Marvel ⋅ 2004

Low
$1
Mid
$2
High
$3

Key Facts

1st appearance of Ratatoskr, an Asgardian chaos squirrel god

Low
$1
Mid
$2
High
$8

Key Facts

1st appearance of Sera, a former Angel of Heven and Angela's lover

1st appearance of Laussa, the infant daughter of Odin and Freyja

Low
$1
Mid
$2
High
$4

Key Facts

1st team appearance of the Asgardians of the Galaxy: Angela, Valkyrie, Throg, the Destroyer, Skurge the Executioner, and Thunderstrike, Kevin Masterson, son of the original Thunderstrike

Marvel ⋅ 2011

Low
$1
Mid
$2
High
$3

Key Facts

1st appearance of Cul Borson, the Serpent, Thor's uncle

Sin becomes Skadi after being deemed worthy of the Hammer of Skadi

Marvel ⋅ 1983

Low
$2
Mid
$8
High
$20

Key Facts

1st appearance of Eitri, the dwarf who created Stormbreaker

Origin of Thor

Marvel ⋅ 1978

Low
$1
Mid
$4
High
$10

Key Facts

1st appearance of Sigyn, Loki's wife

1st appearance of Hermod, Norse god of speed

Low
$20
Mid
$80
High
$200

Key Facts

Iconic cover art by Jack Kirby

1st appearance of Queen Ula

2nd appearance of Hercules

Thor reveals his identity to Jane Foster

Low
$55
Mid
$160
High
$550

Key Facts

First Magneto appearance outside of an X-Men comic

Low
$60
Mid
$180
High
$600

Key Facts

1st appearance of Grey Gargoyle

1st appearance of Karnilla, a powerful Asgardian sorceress

Low
$60
Mid
$180
High
$600

Key Facts

1st appearance and cover of the Destroyer, a suit of armor forged by Odin and animated by magic to act as a protector

Later, Thor frees Firelord from Galactus by giving him the Destroyer armor to act as his Herald

Marvel ⋅ 1986

Low
$5
Mid
$15
High
$55

Key Facts

Thor is transformed into a frog in the previous issue and spends this entire issue as an amphibian

In Thor #365, he lifts Mjolnir and becomes a frog version of Thor

1st appearance of Puddlegulp, Simon Walterson, a frog who later wields a hammer named Frogjolnir as Throg

⚠ Misconception: sources cite this as the first appearance of Throg. Thor is transformed into a frog in #363 and wields a sliver of Mjolnir as a frog version of Thor in #365. Simon Walterson does not appear as 'Throg' until Lockjaw and the Pet Avengers #1 (2009)

Marvel ⋅ 1988

Low
$1
Mid
$2
High
$3

Key Facts

1st appearance of Eric Masterson, later becomes Thunderstrike

1st full appearance of Mongoose, a half man, half mongoose villain

Marvel ⋅ 2018

Low
$1
Mid
$2
High
$5

Key Facts

1st full appearance of the new Valkyrie in story, appears on variant cover of Exiles #1

1st cameo appearance of Peggy Carter as Captain America

Image ⋅ 1993

Low
$2
Mid
$8
High
$20

Key Facts

1st appearance of Angela

later acquired by Marvel as Thor's half sister

1st appearance of Medieval Spawn

1st appearance of Cogliostro

Cover inspired by Wonder Woman #72

Marvel ⋅ 1973

Low
$12
Mid
$45
High
$145

Key Facts

1st appearance of Barbara Norris as Valkyrie

Valkyrie joins the Defenders

Marvel ⋅ 2003

Low
$1
Mid
$2
High
$3

Key Facts

1st appearance of Magni Thorson as a baby, son of Thor and Amora in an alternate universe

Marvel ⋅ 2017

Low
$1
Mid
$2
High
$3

Key Facts

1st appearance of Volstagg as War Thor

Marvel ⋅ 1970

Low
$20
Mid
$80
High
$225

Key Facts

1st appearance of Valkyrie, Enchantress in disguise

1st team appearance of the Lady Liberators: Valkyrie, Scarlet Witch, Wasp, Black Widow, Medusa

Debut of the Rutland Halloween Parade, a real parade held in Vermont annually that has been depicted in both Marvel and DC comics nearly 20 times with parade attendees wearing superhero costumes from both publishers in each book

Low
$4.2k
Mid
$20k
High
$81k

Key Facts

1st appearance and origin of Thor

Introduction of Thor's hammer, Mjolnir

1st team appearance of the Kronans, a race of rock-like aliens

1st appearance of Donald Blake, the human host of Thor

Low
$950
Mid
$4.7k
High
$14k

Key Facts

1st appearance of Loki, the Norse god of mischief

1st appearance of Balder, half-brother of Thor

1st appearance of Heimdall, guardian of Bifrost

1st appearance of Tyr, the Norse god of war

1st cameo appearance of Odin, the All-Father, seen from behind

3rd appearance of Thor

Low
$80
Mid
$250
High
$1.4k

Key Facts

1st appearance of Tomorrow Man

1st full appearance of Odin, one panel in full armor

Low
$100
Mid
$300
High
$1k

Key Facts

1st cameo appearance of Fricka aka Frigga, one panel from behind

1st appearance of Neri, handmaiden to Fricka

Low
$40
Mid
$125
High
$725

Key Facts

Origin of Odin

1st appearance of Buri, grandfather of Odin

1st appearance of Bor, Father of Odin

1st cameo appearance of Surtur

1st cameo appearance of Ymir

1st appearance of Vili and Ve, Odin's brothers

Low
$60
Mid
$180
High
$600

Key Facts

1st full appearance of Surtur, a demonic enemy of Thor

1st appearance and origin of Mr. Hyde

Low
$40
Mid
$150
High
$450

Key Facts

1st appearance of Hela

1st and only appearance of Lady Sif, a different character than the Sif that appears in Thor #136

Low
$95
Mid
$315
High
$950

Key Facts

1st appearance of Enchantress, Amora

1st appearance of Skurge the Executioner

Low
$20
Mid
$60
High
$320

Key Facts

2nd appearance of Enchantress

Debut of the Twilight Sword, the sword of Surtur that would cleave the land of Okkara into Krakoa and Arakko

Low
$55
Mid
$260
High
$700

Key Facts

1st appearance and origin of Absorbing Man

1st appearance of Fenris Wolf

1st appearance of Idunn, an Asgardian goddess

Low
$45
Mid
$130
High
$450

Key Facts

1st team appearance of The Warriors Three: Volstagg, Fandral and Hogun

2nd appearance of the Destroyer

Marvel ⋅ 1978

Low
$1
Mid
$3
High
$7

Key Facts

1st appearance of Skrymir

Marvel ⋅ 1978

Low
$1
Mid
$3
High
$12

Key Facts

1st appearance of Frigga, previously appeared in cameo as Fricka in Journey Into Mystery #92

1st appearance of Hugin and Munin, Odin's ravens, also known as Thought and Memory

Death of Balder

1st appearance of Sleipnir (Sleipneir), Odin's horse

1st appearance of Hermod, a god of messengers

Marvel ⋅ 1980

Low
$1
Mid
$2
High
$5

Key Facts

1st appearance of the Eye of Odin

Marvel ⋅ 1980

Low
$1
Mid
$2
High
$5

Key Facts

Origin of Odin and Asgard

1st full appearance of Magni and Modi, sons of Thor

1st appearance of Frey, Norse god of the harvest

Marvel ⋅ 1980

Low
$1
Mid
$3
High
$12

Key Facts

Origin of Odin

Origin of Thor, revealed that Gaea is the mother of Thor

1st appearance of Yu Huang, the Jade Emperor

1st team appearance of the Council of God-Heads: Ammon Ra, Anu, Baiame, Buddha, Buluku, Itzamna, Izanagi, Manitou, Nuada, Okonorote, Ukko, Ulgen, Tezcatlipoca, Tomazooma, Vishnu, Viracocha, Zeus

1st cameo appearance of Kiana aka Moonstalker

Marvel ⋅ 1987

Low
$1
Mid
$2
High
$4

Key Facts

Death of Midgard Serpent

Adjust Your Filters To See More Comics!

By default Key Collector searches for Standard Cover Key Issues.

Adjust the "Variants" search filter above for additional content:

  • Variant Covers ([[totalVariants]])

At Key Collector, our primary focus is on unearthing those rare Standard Cover Key Issues for you. However, the world of comic collectibles is vast and varied. We want to make sure you have the tools to explore it all!