It is only in Alara Reborn.
The next Magic the Gathering set is set 2 in the Zendikar block, called Worldwake.
Either 8 or 15 cards.
Older (pre-Shards of Alara) 60-card theme decks don't. Newer 40-card 'Intro Packs' do.
No, you would have to very unlucky, or very lucky to do that.
I would suggest that you go to the magic the gathering website and look up their gatherer function. There, you can look up all the blue and black elementals in magic history and finc the set that has the largest portion of them. Hope that helps.
Alpha debuted on the 5th of August, 1993, at the Origins Game Fair.
I bought my first pack for $2 but now they are around $4. I don't think the price will go up that much.
Unless you have the first add-on pack, the Nicol Bolas expansion. The last two decks arent available to you.
There is no best they are all equal. I recommend the newest Intro/Starter pack you can find though, so it has the most up to date changes and rules.
No. No stand alone color specific booster are sold. However theros sealed prerelease boxes contain a semi-randomized pack that favors one color heavily.
If You Mean What Is Sims Makin Magic, It Is An expansion pack for the sims!
The six-card packs are about a dollar, the 15-card packs are about three dollars, the intro packs are about twelve dollars, and any pack bigger than that ranges from twenty to thirty dollars.