Hello

Hi I'm batman22443434 and I'm wondering how to build a deck

Welcome to DA,

You don't build decks here. We are a online community who use Dueling platforms such as Duelingbook, YGOpro etc to build decks and duel.

Oh. Thank you for clearing that up. Another question, how do you rank up in the dorms then if you don't duel on here

Not a problem if you click this link: http://www.duelacademy.net/h9-da-guide

It will go over how to rank up and many other things we do here at Duel Academy. Some of it is a little outdated (Going to update it this week) but it will help.

If your unsure on anything else just let me know.