Ant man, black cat or blade

I'm not sure who to use my free hero ticket for. For ant man, he seems to have a little special play style. For black cat, I like her multi play style. And for blade, I like his blood mechanic (not sure about the name).
So hope you can give me some idea, who to pick. Thank in advance :)

Here is the poll.
http://www.strawpoll.me/10438947