User blog:Couldnotthinkofagoodname/Seasons?

I was looking through alot of the different profiles to get an idea of how things are run and I have two questions.

What are seasons and how can I officially make them rather than having a blog on a few batle ideas that no one cares about?

And how do I make an official battle? People have these cards saying make 3 battles. Does that mean I have to make 3 really popular battles or do they automatically become battles?