So I didn't need to upgrade to Phoenixbuster Iron Man and No More Mutants Wanda?

Thunderbolts (Heroic Age) (pre-game)
Juggernaut [4 SA][1 KO] = 46 XP
Ghost [2 SA][1 AST] = 29 XP
Songbird [2 SA][1 DFD][1 AST] = 41 XP
Shocker (90 pts) [6 SA][4 KO] = 28 XP
Man-Thing = [1 KO] 26 XP
Slate [1 SA] = 9 XP
Killian [1 SA] = 7 XP
ATA: Thunderbolts
Upgrades: 1
Team XPs: 31

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We'll put 20 XPs toward RPs and 4 XPs to each team member who played.

Thunderbolts (Heroic Age) updated stats
Juggernaut [4 SA][1 KO] = 50 XP
Ghost [2 SA][2 AST][1 DFD] = 43 XP
Songbird [3 SA][1 DFD][1 AST] = 50 XP
Shocker (90 pts) [7 SA][4 KO] = 37 XP
Man-Thing = [1 SA][2 KO] 45 XP
Slate [1 SA] = 9 XP
Killian [1 SA] = 7 XP
ATA: Thunderbolts
Upgrades: 1
Team XPs: 51

=================
Juggernaut uses 50 XPs to gain Lucky Break (5 pts)
Songbird uses 50 XPs to reach her HoT version (83 pts)

===================


Thunderbolts (Heroic Age) final stats
Juggernaut* [4 SA][1 KO] = 0 XP
Ghost [2 SA][2 AST][1 DFD] = 43 XP
Songbird (HoT) [3 SA][1 DFD][1 AST] = 0 XP
Shocker (90 pts) [7 SA][4 KO] = 37 XP
Man-Thing [1 SA][2 KO] = 45 XP
Slate [1 SA] = 9 XP
Killian [1 SA] = 7 XP
ATA: Thunderbolts
*Lucky Break, 5 pts
Upgrades: 3
Team XPs: 51