This deck has one idea: LOCKDOWN YOUR OPPONENTS LAND
Normally you would think of a Blue deck using Stasis.
Not this deck.  Mishra's Helix is an awesome card, but has a high CC
of 5.  Green solved that problem really quickly.  During playtesting
against Draw-Go, Big Blue, Finkel Blue, Sligh, Suicide, and Cataclysm,
this deck averaged 12 turns to kill opponent and it went 11-1.

4 Mishra's Helix
4 Voltaic Key
3 Worn Powerstone

4 Vernal Bloom
4 Llanowar Elves
4 Priest of Titania
4 Wall of Blossoms
3 Citanul Centaurs
3 Albino Troll
3 Elvish Lyrist
2 Abundance
2 Sylvan Library

18 Forests
2 Gaea's Cradle

The deck depends only on its speed.  If its not fast enough to get
a lock down, then you still have a chance.  If you do get the lock
down, then you WILL WIN.  In all the games that I played when the
lock was down (8 of the 12), I won.  When I didn't get the lock down
until turn 6, I sitll was 3 - 1.

Urza