Search by Title
Filter by Timeframe
Compact View
Hide Key facts, Own, Want and Buy options.

X-Men Deadly Adversaries

A categorical listing of X-Men Deadly Adversaries curated by Key Collector Comics.

Low $3.1k
 | 
Mid $9.2k
 | 
High $48.5k
  • 1st team appearance of the X-Men: Cyclops, Jean Grey aka Marvel Girl, Iceman, Angel, Beast, Professor X and Magneto
  • Homo Superior concept, coined by Magneto to describe humans born with special abilities introduced in this issue
Low $110
 | 
Mid $425
 | 
High $1.9k
  • 1st appearance of the Blob, an invulnerable mutant
Low $445
 | 
Mid $1.8k
 | 
High $10.5k
  • 1st team appearance of the Brotherhood of Evil Mutants led by Magneto
  • 1st appearance of Scarlet Witch
  • 1st appearance of Quicksilver
  • 1st appearance Mastermind, later becomes Jason Wyngarde
  • 1st appearance of Toad
  • 2nd appearance of Magneto
  • Although the Scarlet Witch's costume is colored green on the cover, it is red in the story
Low $240
 | 
Mid $900
 | 
High $3.3k
  • 1st appearance and origin of the Juggernaut
  • Origin of Professor X
  • 1st cameo appearance of Cyttorak (statue), the demonic elder god whose Crimson Bands and ruby gemstone gave Juggernaut great powers
Low $75
 | 
Mid $565
 | 
High $2.1k
  • 1st appearance of the Sentinels, machines invented to hunt mutants
  • 1st appearance of Dr. Bolivar Trask, creator of the Sentinels
Low $115
 | 
Mid $480
 | 
High $1.2k
  • Jean Grey is overtaken by the Phoenix Force
  • 1st full appearance of Black Tom Cassidy
Low $20
 | 
Mid $80
 | 
High $225
  • 1st full appearance of Mystique with blue skin
  • [April 2021 - Marvel launched a travel website at exploremadripoor.com. There are certain numbers that were found in scenes of The Falcon and Winter Soldier that could be entered into different interactive parts of the site. Two of the names that were viewable on the site were Daken and Mystique but the names have since been taken down. ⚠ There is some chatter that the screenshots of the names are a hoax]]
Low $5
 | 
Mid $15
 | 
High $55
  • 1st appearance of the Shadow King, Amahl Farouk, a powerful psychic
  • Origin of Professor X concerning a difficult psychic battle against Amahl Farouk which was the inspiration to create the X-Men
  • Professor X recalls his first encounter with Storm
Low $8
 | 
Mid $20
 | 
High $85
  • 1st cameo appearance of Mutant X AKA Proteus, the son of Moira MacTaggert
Low $60
 | 
Mid $135
 | 
High $630
  • The Dark Phoenix Saga Part 1
  • 1st appearance of Kitty Pryde
  • 1st appearance of Emma Frost, the White Queen
  • 1st cameo team appearance of The Hellfire Club (in shadows)
Low $9
 | 
Mid $30
 | 
High $100
  • The Dark Phoenix Saga Part 6
  • Jean Grey becomes the Dark Phoenix
Low $3
 | 
Mid $9
 | 
High $30
  • "God Loves, Man Kills"
  • 1st appearance of General William Stryker
  • 1st team appearance of the Purifiers
Low $4
 | 
Mid $12
 | 
High $40
  • 1st full appearance of Apocalypse
Low $10
 | 
Mid $30
 | 
High $100
  • 1st full appearance of Mr. Sinister
  • [February 2021 - Mr. Sinister will appear in the animated M.O.D.O.K. series]
Low $18
 | 
Mid $55
 | 
High $175
  • 1st full appearance of Cable
  • 1st full team appearance of the Mutant Liberation Front: Stryfe, Wildside, Reaper, Fourarm, Thumbelina, Strobe, Tempo, Zero
Low $1
 | 
Mid $2
 | 
High $10
  • 1st full appearance of Onslaught, a creation born from the mind of Charles X and Magneto