| Loki's Scepter (4 variants) | 367 |
| Loki, the Deceiver (12 variants) | 86 |
| Loki, the Deceiver (4 variants) | 407 |
| Loki, Lord of Misrule (8 variants) | 628 |
| Loki, God of Lies (8 variants) | 512 |
| Lockjaw, Slobbering Teleporter (12 variants) | 36 |
| Lockjaw, Slobbering Teleporter (4 variants) | 336 |
| Living Lightning, Charged Up (12 variants) | 764 |
| Living Lies of Loki (8 variants) | 627 |
| Living Laser (12 variants) | 55 |
| Living Laser (4 variants) | 366 |
| Lightning Greaves (12 variants) | 202 |
| Lightning Bolt (8 variants) | 806 |
| Lethal Scheme (4 variants) | 353 |
| Lethal Scheme (12 variants) | 157 |
| Lady Spider, Maybelle Reilly (8 variants) | 695 |
| Lady Loki, Agent of Chaos (4 variants) | 365 |
| Lady Loki, Agent of Chaos (12 variants) | 54 |
| Klaw, Master of Sound (4 variants) | 352 |
| Klaw, Master of Sound (12 variants) | 46 |
| Kingpin, Wilson Fisk (8 variants) | 661 |
| King Solomon's Frogs (4 variants) | 312 |
| King Solomon's Frogs (12 variants) | 20 |
| Kindred Dominance (4 variants) | 351 |
| Kindred Dominance (12 variants) | 156 |
| Kindred Discovery (4 variants) | 334 |
| Kindred Discovery (12 variants) | 150 |
| Kimoyo Beads (4 variants) | 440 |
| Kimoyo Beads (12 variants) | 109 |
| Killmonger, Ruthless Usurper (12 variants) | 53 |
| Killmonger, Ruthless Usurper (4 variants) | 364 |
| Karolina Dean, Runaway (8 variants) | 694 |
| Kang Prime (4 variants) | 406 |
| Kang Prime (12 variants) | 85 |
| Kang Dynasty (12 variants) | 35 |
| Jocasta, Automaton Avenger (12 variants) | 108 |
| Jocasta, Automaton Avenger (4 variants) | 439 |
| Jarvis, Earth's Mightiest Butler (4 variants) | 333 |
| Jarvis, Earth's Mightiest Butler (12 variants) | 34 |
| Jack of Hearts, Volatile Hero (8 variants) | 693 |
| It's Clobberin' Time! (4 variants) | 381 |
| It's Clobberin' Time! (12 variants) | 66 |
| Irrigated Farmland (12 variants) | 251 |
| Irrigated Farmland (4 variants) | 481 |
| Iron Suitcase (8 variants) | 750 |
| Iron Monger, Sadistic Tycoon (4 variants) | 350 |
| Iron Monger, Sadistic Tycoon (12 variants) | 45 |
| Iron Man, Tony Stark (6 variants) | 851 |
| Iron Man, Modern Marvel (12 variants) | 830 |
| Iron Man, Futurist Paragon (8 variants) | 501 |