It really Depends, if you haven't completed ROL, i would go for Ægon just so you can easily run through it. If you need for example a good counter for evade on awo, a immunity champ or a good defender go for iceman. Both Ægon and Iceman are good for endgame content.
Aegon shrugs off debuffs after I believe 10 or 15 hits on the combo meter. Just as good as an immunity champ. But better damage. But they are just 4* so easy to max sig with time. And you’ll take both up eventually. So take aegon first and iceman second
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Actually it does because the champ will help me beat 5.2.6 and get uncollected
Yeah, definitely base your rank ups on being a legit marvel character and not on usability, utility, or anything like that. /s
Next is iceman.
Well it doesn’t really matter since the majority said rank up Ægon first, as I did. Now I can focus on iceman