Not every champions has a 1*, 2*, 3*, 4* version. Every time I get a 2* champion it is a duplicate, which makes me believe I have collected them all. But there is no way I can know for sure without looking at a list of all 2* champions. Something that cannot be found in-game.
After reading through many outdated forum posts from Kabam and GameFAQs I decided to ask here.
How do I find out how many 2* champions are there on Marvel CoC? Is there a list in-game? Is there an official list?