For each set, you can only redeem the Prerelease code once for most sets, and up to 5 times for MKM, OTJ, and MH3
The idea is simple: burn through your life total as fast possible, and find ways to turn that into a win
Put that card onto the battlefield and the rest on the bottom of your library in a random order. The short version is that you get to hit people with things, sacrifice them if you want to and then replace them with the next creature that shares a type from your library
Exile Long Rest
Some of the more popular Magic subreddits Id recommend are: magicTCG: A basic all-purpose subreddit thats useful for news, art, and community drama
Back to Basics (Hoser) Perhaps the best non-basic land hoser in all of Magic , depending if you consider Wasteland a hoser or just a good land destruction effect