|Do you see Redwing's Revenge? =)|
The checklist gives you the name of every card along with the character(s) that are activated by the card. It's an excel spreadsheet so you can sort the cards a number of different ways and even add your own data if you felt so inclined.
So how many Captain America cards are in the set? 12! How many Falcon cards? 6! So if you want to make a Cap/Falcon deck, at this point you're pretty limited...
One odd thing I had pointed out to me by a friend - the four loot cards aren't on the list even though they're playable cards. So even though they promote the game as a 300 card set it is actually 304!