There are a couple of requirements before you can just jump in, battles are scheduled so you can't just do them. Not to manage there is a prize, oh and a Top 3 List. But you have got to know how to win first...
Some prizes that you can win are
~Dollars
~Heroes
~Update
~Hero improvement
So how do you prepare yourself for this type of excitement...
We can only have One Battle a day, so you WILL be scheduled and your Battle partner must also send in the request.
Users who play can have up to 7 Heroes in battle,
I myself, can't really help you on who you decided to add on your team or who you battle with. And even though you look at somebody and they seem like they have a weak team... You don't know who they could be hiding in their inventory. If they seem weak, but accept your challenge chances are they are gonna whip out some OP kid. Don't trust those weak standings just because they don't appear tough and have a full team on their page. Because they could. But they also couldn't...
If you are a newbie with one hero, try to go with somebody else who has one hero, try to stay in your range. You have a advantage by seeing who they decide to post on their page. Though if you don't know that hero well... it could go bad for you, if you don't know their standings. Try to be rational.
Oh and also Good Luck!
~Unhelpful V