Quote Originally Posted by Klepto View Post
You'd have to wait for your title to catch up.

Also, you'd be wasting gems because you can get the Hero for the same cost or cheaper buying credits in the fair. Takes a bit longer but you get far more out of doing that than just spending straight up gems.
This is just your opinion. There are circumstances where it is more advantageous to purchase hero cards in the fair. I'm not going to say what those circumstances are, because its more fun for you all to figure it out on your own.