I saw this deck on a thread on another site and I wanted to test it out myself so I changed some stuff, and I've had some great results.

The point of this deck is to have a hand of leylines (which come into play before the game) and then your goal is to get [card]Opalescence[/card] into play then swing with a bunch of 4/4 leyline critters.

There are 8 enchantment tutors to get the Opalescence, and the [card]Serra's Sanctum[/card] is used to get it into play ASAP. There are 4 Sanctums and 6 Land tutors to get the Sanctum. There is also some utility enchantments to help you survive.

The Leyline Army
4 [card]Leyline of the Void[/card]
4 [card]Leyline of the Meek[/card]
4 [card]Leyline of Lightning[/card]
4 [card]Leyline of the Lifeforce[/card]
4 [card]Opalescence[/card]

The search Cards
4 [card]Sterling Grove[/card]
4 [card]Enlightened Tutor[/card]
4 [card]Crop rotation[/card]
2 [card]Sylvan Scrying[/card]

The Utility
1 [card]Mobilization[/card]
1 [card]City of solitude[/card]
2 [card]Privileged Position[/card]
1 [card]Solitary Confinement[/card]
1 [card]aura of Silence[/card]

Lands
4 [card]Serra's Sanctum[/card]
4 [card]Savannah[/card]
4 [card]City of Brass[/card]
4 [card]Gemstone Mine[/card]
3 [card]Tendo Ice Bridge[/card]
1 [card]Petrified Field[/card]

Sideboard
3 [card]City of Solitude[/card]
3 [card]Aura of silence[/card]
1 [card]Mobilization[/card]
1 [card]Sacred Mesa[/card]
1 [card]Night of souls Betrayal[/card]
3 [card]Karmic Justice[/card]
3 [card]Elephant Grass[/card]