Can they be earth's mightiest heroes?

Some might not give these guys a chance as a group, but believe it or not they have something in common: they want change. Change for themselves (Wade, Flash, and Laura), or change in the world (Tony). I'm sure as hell they'll disagree with each other a lot, but if they find a way to work together you'll find it...... ASTONISHING! So I'll ask, can they be earth's mightiest heroes? Or will they kill each other first?

I don't think these characters can be Earth's Mightiest Heroes.

They aren't mighty enough.

Thor solos

I could see all (bar Tony) working as a covert ops team. They all have at some point anyway, right? But not Earth's mightiest. PowerHerc said it right. Not "mighty" enough

Iron Man's gonna need more help.

This is how it would work. They all brawl with each other. Tony kills X-23, Deadpool kills Agent Venom then Deadpool(if he has his healing factor) kills Tony or if Deadpool doesn't have said healing factor is killed.