I'm playing EDH with friends (casual competitors) on Thursday and have 0 EDH decks. I have lots of cards but not really many bombs. I don't mind loosing, I like attacking and putting pressure on people. What type of EDH decks, I want to make two at least, are good option to prevent long boring games.
Well if you don't like long games you probably shouldn't play EDH, especially not in a group...
Your best bet to make games short would be to make a red deck, Goblins if you want a chance to win or anything else if you're ok with losing pretty much every time since red is quite bad in EDH.