Idea is to by Turn 5 or 6 to have 20 to 30 mana to cast a Hurricane or Squall Line on your opponent.
To have 20 something mana by Turn 5, you better have some of the best mana ramp creatures in Magic. Welcome Priest of Titania and Rofellos. Go check out what they do. Awesome right? Both of them, with a good draw, will be giving you 4 or 5 mana each by Turn 4 or 5! You have 4 Elves in play, then Tap Titania to add 4 mana. Have 4 Forest in play, then Rofellos gives you 4 mana.
What is going to protect all of your elves long enough for you to gather the small army necessary to mana ramp over 20 mana? Eladamri, Lord of Leaves. He provides all or your Elves shroud. Nice. He makes all of your Elves very difficult to kill.
So, notice how the win cards in this deck kill both you and your opponent? Hurricane and Squall Line deal x damage to me and my opponent. If we both have 20 life, we both lose. So I need to have more life than my opponent when I cast a Hurricane. Here is where Wellwisher and Steam of Life comes into play. Wellwisher gives me 1 life for each Elf in play. So, 4 Elves, I tap Wellwisher and i gain 4 life. Two Wellwishers in the game, and I gain 8 life! Stream of Life, is simple, a x spell. Gain 1 life for each mana I spent to cast the spell. With huge amounts of extra mana available every turn, Steam of Life can give an extreme boost of life.
What happens with all of my mana, when i cast everything in my hand and start top decking? Here comes Sylvan Messenger. Cast him onto the battlefield, now draw 4 cards, and keep any of those 4 cards that happen to be Elves. He provides speed, cards in your hand, and extra Elves to be able to cast, considering all of your mana.
Naturalize/Fog. These two cards should probably be in the sideboard, but i want to make this deck be able to survive if my 1 win condition doesn't seem to be working out. Naturalize is for artifact and enchantment hate. There are many artifacts/enchantments in Magic that could absolutely stop this deck in it's tracks, so cast Naturalize to nuke their threats. Fog is genius. I love it. Old school Magic, for you. Here comes a Goblin deck, attacking with everything they have on Turn 5. Coming at you with 38 damn damage!!! Surely it is game over for you, right? Nope, simply cast Fog for one single mana, and all of a sudden, 38 damage is erased, your opponent looks like an idiot, and is completely open your turn.
Running 1 Gaea's Cradle...any more seemed mean. The card is broken, or should be.
Finally, Vitalize and Quirion Ranger. A Magic card is ranked 1 out of 5 stars, right? 1 star card sucks, and Ancestral Recall/Black Lotus do not even rank 5 out of 5 stars. Anyways, if you add Vitalize and Quirion Rangers score...you get an amazing. 8.9 out of 10 stars. What makes them game changers?
Vitalize, for 1 mana you untap all of your creatures. Sounds okay, but not great, right? Well, consider this example with Vitalize: You just tapped Priest of Titania for 4 mana, and tapped Wellwisher for 4 life, and just tapped Rofellos for 4 mana. They are all tapped. You have 8 mana and gained 4 life. Now, BOOM GOES THE DYNAMITE, use 1 of those 8 mana (you now have 7 mana left) to use Vitalize. Now Titania is untapped, Wellwisher is untapped, and Rofellos is untapped. Guess what you get to do now? Retap Priest of Titania for 4 more mana. Tap Wellwisher for 4 more life. And Tap Rofellos for 4 more mana. So...to sum it up, you went from having 8 mana and 4 life to having 15 mana and 8 life, all for ONE MANA!!!
Quirion Ranger. This card, at first, looks like a crappy card. This card is what separates long time Magic players with Noobs. A noob sees this card, thinks it sucks, and gives it away. Quirion Ranger is rated a 4.5 out of 5 stars (just like Priest of Titania and Rofellos) for a reason. This is what she does, return 1 forest to my hand and untap one creature. Again, lame right? Consider 1 more example for me. Let's say it is Turn 5. I have Priest of Titania on the field, and 4 other Elves on the field too. So I tap Priest of Titania to add 5 mana to my mana pool. I return 1 forest to my hand through Ranger, and now I untap Titania. Guess what, she retaps again for 5 more mana!!! So, for 1 tapped forest I just got 5 mana!!!
Hurricane/Squall Line. These are my win cards. Do x damage to each player and each creature without flying. I am more interested in the x damage to my opponent part. All the silly Elves tapping and untapping are meant for these 2 cards.