Brewing for Standard format with Dragons of Tarkir, here is another version for a Red Green midrange-ish ramp deck which focuses of late game fatties and Dragons and not on Rabblemasters and Heir of the Wilds. The initial deck list after the cut.

Lands
7 Forest
1 Mana Confluence
8 Mountain
4 Temple of Abandon
4 Wooded Foothills

Creatures
4 Courser of Kruphix
3 Dragonlord Atarka
2 Hornet Queen
4 Thunderbreak Regent
2 Harbinger of the Hunt
4 Stormbreath Dragon
4 Sylvan Caryatid

Spells
1 Atarka Monument
1 Outpost Siege
1 Sarkhan, the Dragonspeaker
1 Hammer of Purphoros
3 Lightning Strike
4 Crater’s Claws
2 Atarka’s Command