I've been saving units and free crystals for
Collector for the past month.

I also have a good number of boosts and revives.
Who should I bring and what tips besides "don't get hit"?
Here are my main 4* and 5* champs list:
Spider-Man Stark Enhanced 4* 5/50 Sig 21
Blade 4* 5/50 Sig 64
Ghost Rider 4* 5/50 Sig 99
Sabretooth 4* 5/50 Sig 38
Symbiote Supreme 5* 3/45 Unduped
Hyperion 4* 5/50 Sig 58
Wolverine X-23 4* 5/50 Sig 85
Gwenpool 4* 5/50 Unduped
Venom 5* 3/45 (getting there to 4/55...) Unduped
Ultron 5* 3/45 (getting there to 4/55) Unduped
Killmonger 4* 5/50 Unduped
Red Hulk 4* 5/50 Unduped
Medusa 4* 4/40 Unduped
Nightcrawler 5* 2/35 Unduped
Hulk 4* 4/40 Sig 92
Magik 4* 4/40 Sig 26
Ghost 4* 4/40 Unduped
Vision (Age of Ultron) 4* 4/40 Sig 20
Wolverine 4* 4/40 Sig 43
All advice and feedback will be appreciated!