ELVES!!!
Never underestimate the power of elves! elf decks have always been surprisingly like that of goblin decks of late. If you overrun your opponent with millions of elves, you know when you've made a deck that is not that good.
I myself try to play in type I tournaments and stress the fundamentals of the creature types and such. Goblins aren't elves, and elves don't go to the slaughter as well as goblins do, thats a point of fact when it comes to building a deck.
First I'll try to give people an understanding of what an elf is more intuned toward doing, then work around to building a deck for you to playtest and just basically screw around with until you make it your own.
Elves are a gentle folk that live in tree's and attack not a thing but what threatens their sacred home and the ballance that keeps elf and nature in harmony. An elf lives for thousands of years so as to uphold the ballance between earth and the creatures that live on the land. Whatever you might want to think about this, its probably the closest to what Wizards has tried to portray the odd creatures that we call elves, so I will try to show you a few combos so as not to upset the less inclined of you.
First, Natural Order. First printed in Visions, and later in Portal 1. Now you know about the rare card that give you a natural order. NO give you the ability to search your deck for any green creature and place it into play at the expense of a green creature. For (2)(G)(G) you don't have to expect a whole lot from the green engine at all. Now for practical use. what is that, grab a Silvos for a stupid 0/1 taunting elf for goodness sake!
Second, elven battery packs. You might laugh at thing as I am figuring out the combinations as these words are forming. take one Roffelos or a priest of titania to generate the mana, two wirewood lodge, and a Krosan Restorer. While running the roffelos or priest to build up the mana, you'll be using the lodge to untap the mana producers, and the restorer to restore the lodge's to their glory. While you might see that you can use all that mana to your advantage by pumping it into a burn spell, that is not the case here. You can cast an upwelling if you with, but what good will that do you? infinite mana on one turn carried over to the next where you can create infinite mana is not two infinite mana. Give into the power of the kraklin or the ivy elemental (I personally like the kraklin better) so as to have a huge creature that your opponent can kill by edict or hand of death.
Next time I'll post the decks that I have made to let you build upon thier simple design.