Magic is easy to learn Red! But hard (and fun) to master.
Basically, you draw cards from your own deck of cards, play those cards to summon creatures to fight for you, attack your enemy with said creatures until he dies, and then you win. Or you die first, thus losing the game. Simple!
Your deck of cards consists of at least 60 cards that you pick for yourself. And there have been thousands of cards made for Magic that you can use.
Of course, since the game is called Magic, there are tons of different spells and effects to stir things up and bend the rules of the game to your will. Exactly how crazy or just plain WEIRD things can get, depends on the players and what cards they choose to use in their deck.
Some people don't even use creatures at all to deal damage. Some people don't even give a damn about damage, and use other alternative ways to win.
All in all, it's a game that lets you customize A LOT. You usually play the game 1 vs 1, but you can be as many people as you want really, doing either a Free For All, or one team vs another team.
I told you to do this something like last August you Armageddon-tier cocksucker.