Here is a list of the base set for the MM 07'. Take a good look, with the exception of the title and checklist cards, there are only 16 characters yet to be busted.
1 Title Card
2 The Abomination
3 Adam Warlock
4 Apocalypse
5 Archangel
6 Baron Zemo
7 The Beast
8 Bishop
9 Black Cat
10 Black Panther
11 Black Widow
12 Blade
13 Blob
14 Bullseye
15 Cable
16 Captain America
17 Carnage
18 The Chameleon
19 Colossus
20 Cyclops
21 Dagger
22 Daredevil
23 Dr. Doom
24 Dr. Octopus
25 Dr. Strange
26 Dormammu
27 Dracula
28 Elektra
29 The Falcon
30 Galactus
31 Gambit
32 Ghost Rider
33 Giant-Man
34 Green Goblin
35 Hawkeye
36 Hobgoblin
37 The Hulk
38 The Human Torch
39 Hyperion
40 Iceman
41 The Invisible Woman
42 Iron Fist
43 Iron Man
44 Juggernaut
45 Kang
46 Kingpin
47 Kitty Pryde
48 Kraven the Hunter
49 Lady Deathstrike
50 The Lizard
51 Loki
52 Luke Cage
53 Mach-IV
54 Magneto
55 Man-Thing
56 Mephisto
57 Mr. Fantastic
58 Moon Knight
59 Ms. Marvel
60 Mysterio
61 Mystique
62 Nick Fury
63 Nightcrawler
64 Phoenix
65 Professor X
66 Punisher
67 Pyro
68 Rhino
69 Rogue
70 Sabretooth
71 Sandman
72 Scarlet Witch
73 The Scorpion
74 Sentry
75 The She-Hulk
76 Silver Sable
77 The Silver Surfer
78 Spider-Girl
79 Spider-Man
80 Spider-Woman
81 Storm
82 Sub-Mariner
83 Super-Skrull
84 Thanos
85 The Thing
86 Thor
87 Toad
88 Venom
89 The Wasp
90 Wolverine