Polymorphosis

I threw this together while at work today:

// FORMAT: Standard

// Lands (26)
7 Forest
5 Island
3 Plains
3 Glacial Fortress
4 Sunpetal Grove
4 Terramorphic Expanse

// Creatures (2)
1 Inkwell Leviathan
1 Progenitus

// Enchantments (2)
2 Fertile Ground

// Spells (24)
4 Essence Scatter
4 Manamorphose
4 Silence
4 Polymorph
4 Ponder
4 Rampant Growth

// Planeswalkers (6)
3 Elspeth, Knight-Errant
3 Garruk Wildspeaker

// Sideboard (15)
SB: 1 Darksteel Colossus
SB: 4 Hallowed Burial
SB: 2 Martial Coup
SB: 4 Negate
SB: 4 Path to Exile

I havent tested it at all, and will probably end up MB'ing the hallowed burials