Welcome to Gaia! ::

I use so many decks I can barely modify them all in one day when I get new cards.
I have 5 color wheel decks, green and white are made up of weenies with a few high cost monsters for later in the game, red is a direct damage deck aimed to kill my opponent without use of creatures, black is, well black, I made my opponent discard with that deck, blue is mostly flying with control cards.
I also have spirits from the Kamigawa, which take a long time to set up, but I use their abilites to make my creatures stronger and innumberable while gaining massive amounts of life.
I have a rat deck from Betrayers of Kamigawa, in which I use little creatures to attack and when my opponent can't or chooses not to block I can ninjutsu other cards in for less cost and they help me by making my opponent discard or destroying their creatures.
I have an artifact deck with sunburst from Mirrodin, land comes quickly to my hand, I use all five colors and many equiptments so my creatures become more powerful. I have a artifact, blue and white deck from Mirrodin that uses cheap artifacts to power up my creatures and when my artifacts are destroyed I can return them from my graveyard with the help of other artifacts and creatures.
I have a Boros deck from the new Ravinca set, it's red and white with a lot of low cost creatures that power themselves up. Agrus Kos powers up all white and red creatures when he attacks with them. I have Firemane Angel which helps me gain life when she is on the field or in my graveyard.
I have a Dimir deck, also from Ravinca, that makes my opponent discard cards while I draw them. I disrupt their playing by looking at the top card of their deck and making them discard it if I don't like it.
Last but not least is my Golgari deck from Ravinca. In it I have the wonderful ability of dredge in which I can dredge up my monsters by discarding a certain number of cards from my library. Golgari Grave-Troll gains power and toughness equal to the number of creatures in my graveyard which can get up to 20 some creatures.
That's all the decks I have to date, I'm usually taking some apart and making more all the time though.

I have 14 decks total right now.

A Red/Green/Blue deck for multiplayer that sofar is mostly proxxys and untested.
A Green deck that's all mana production and massive tramplers, plus a few decent sized Regenerators.
A red Burn Deck with some Dragons for the later game.
A Blue Counter and Flying deck.
A Selesnya deck with tokens and Convoke.
A Simic deck that uses Graft (tons of +1+1 counters).
An Izzit deck that uses tons of instants and sorceries with Replicate.
A Gruul deck with Bloodthirst (more +1+1 counters).
An unblockable Ninja deck (most definately my best).
A Samurai deck that I almost never play.
My five color Zubera deck (Die my little Zuberas, Die!).
A mostly incomplete artifact deck.
And my White and Black decks are MIA for the time being, but they weren't all that good anyways....

Well I have a few decks.......sigh most people ask me if they are token decks.............I say no........
~smile~ then mid game I somehow manage to have over 15 tokens per turn lol

I've got four decks at the moment. Two for vintage, one for standard, and one for casual. I'm also working on a new deck for standard, playetesting it on Apprentice before I get started ^^

My vintage decks are Mono Green Stompy and Mono Red Burn(sligh). Both standard and easy to play, two of my favourites. My green stompy basically plays every green creature with a cost lower than two with a power greater than its cost, no matter the drawback. The centerpiece cards of the deck are Rogue Elephant, Rancor, and Berserk. Honorable mention to Bounty of the Hunt =D

My red burn is in the works at the moment. I've got the list and I'm rounding up the last few money cards. More or less it burns the oppoenent until they fall over, attacking with cheap and fast creatures like Grim Lavamancers, Jackal Pup and Mogg Fanatic. Right now I'm searching for the Lavamancers and Cursed Scrolls ^^

More or less, both of those decks don't want to see past turn 5-6 or else the oppoenet will literally crush them as both of the decks sit there with empty hands.

My standard decks is R/W Boros Weenie that plays similarily to my green stompy, trying to end the game before the other guy can get their win condition on the board. I'm also working on a Green Beats deck for standard with the same idea.

As you can tell, I'm an Aggro player ^^

I remember Magic... I played a bit with my friends, but I got into it just as everyone at my school seemed to stop. And with no one to play against... well, it got a lot less fun. But the game was pretty cool, and the books were good too.

Ahh, the magic of the internet has kept me playing for all these years ^^ Using the internet, I was able to find stores in my city that ran weekly local tournaments, and from there I always have people to play with. Just gotta look hard enough =D

I understand what you mean. But I'm not all that serious about tournaments either, I usually just see them as an oppurtunity to play ^^

Like if you're like me and lose every week when you play in the same tournament, then you should have some fun with it. Play a bad deck and laugh as everyone scratches their head in confusion, or play a deck you really like and try to win. I try to set a specific goal for myself, like lose all my matches while playing my hardest, y'know?

Tournaments can be really fun as long as you keep your goal in mind. You don't have to be serious about it the game, just be serious about having fun =D