Titled Hero Challenge Cards, completing daily and weekly challenges will level it up and thus unlock new items to equip the associated superhero with.
That's standard stuff for these sorts of progression paths, and this approach sounds fair considering you'll be earning Credits through the base game's six superheroes.
Starting with Hawkeye, you'll then need to purchase these cards separately for 1,000 Credits.
This currency can only be obtained through unlocks on other Battle Passes or with real-world money -- $5 will net you 500 Credits.
To be clear, the character itself and the story, gameplay mechanics, and locations associated with them will be free of charge.
But if you want to customise that superhero with unlocks and decals, you will then need to start splashing the cash.
These Hero Challenge Cards won't be replaced either, meaning you have all the time in the world to unlock everything they have to offer. »