The idea of this deck is build a strong army and win by force or with the help of shaman of the pack.
First you should try to find a [Marwyn, the nurturer] and with the help of [llanowar elves] and [elvish mystic] you can cast her T2, then you start to power up her, [Dwynen's elite] and [Elvish Clancaller] do this very well. by T4 or T5 you should have her with 3 or 4 power and at least other 4 sources of mana. The more elfs you cast, more she grows and more mana you have, all the elves previous mentioned can be casted "free".
Ok, now i have a giant Marwyn and a lot of mana dorks or tokens, what's next?
Now use the advantage of mana to search your library for what you want, the [Shaman of the pack]. basically use the [Sylvan messenger] to draw some more elves, includin him, or [Incubation / Incongruity] to pick one at lower cost, this way you can easilly have 20 elves before playing him. And even if you don't you can cause a massive damage and still have an army of angry elves powered by [Dwynen, Gilt-Leaf Daen] and the clancallers.
Incubation can have another use, the incongruity part can be used to exile some nasty creature using blue mana, fortunally [Paradise druid] can add mana of any color, the main use for her its to add black to cast the Shaman, but also leaves room to splash some other colors.
I not so sure of the land base i will use, the main deck uses basically only green but the black is also very important.
The sideboard is a work in progress, the most important one is blossoming defense because it can protect Marwyn and increases her power by 2 for only one mana.