Cosmic rank up

Pera5

Some 3 cosmic cata are going to espire...
My only duped cosmic is 3/30 Ms Marvel (the blonde One)...
Is worth to rank up to 4/40 or not?
Because i also have
Angela
Thor
Gamora
But the are not duped...

What is the better choice?

I can also sell that 2 cata and wait for better champions or to duped thor or Angela...

nameplas

Ms marvel is a great option when duped, angela is good as well even unduped, I'd say ms marvel