Enchantment? Enchantment! I've worked on this deck for a month or so now.

General idea

The idea is to get a hexproof guy on the table and pump him with enchantments. Being heavy on enchantments makes Ethereal Armor a power house, and the fact that I only have hexproof creatures reduces the chances of getting X-for-1-ed. In many cases, the fact that I only have hexproof creatures makes some of my opponent's cards completely worthless.

The evasion of Invisible Stalker and Sigarda, Host of Herons in addition to Rancor, plus Spectral Flight for Geist of Saint Traft, makes it easier to get through with damage. (Although I'll most often have only one creature out at a time, and put all of my enchantments on that creature.)

Abundant Growth not only helps with mana, but is also an enchantment - and it replaces itself.

Azorius Charm is a really versitile card that can give you the tempo you need to get in the last attack or two, or give you the necessary lifelink to swing a race. Can also occasionally be used to avoid missing a land drop.

Curiosity for card advantage (also pumps Ethereal Armor).

Sideboard

4x Nevermore against Supreme Verdict, Terminus, Sphinx's Revelation

3x Rest in Peace for the reanimator and flashback heavy decks.

2x Garruk, Primal Hunter against decks with a lot of wipes like Supreme Verdict and Terminus

3x Sensory Deprivation and 3x Kraken Hatchling against aggro matchups.