Some of us were discussing Enchantress not to long ago on this thread currently on page 2. I have been experimenting but haven't added to the post lately.
http://www.themanadrain.com/index.php?topic=35831.0I agree that Enchantress can be successful right now. Enchantress is somewhat of a forgotten archtype that may in fact not be viable anymore. However, I've had great success running this deck recently and believe that it can be viable. Cards like Runed Halo and Wheel of Sun and Moon have pumped new life into the deck by offering it solid answers to decks that would normally eat its lunch like basically any combo deck or Ichorid. These cards combined with disruption via Duress/Tormod's Crypt/StP/Seal of Cleansing is more than enough to allow it to hold its own with the big boys.
I run a Green/White/Black version that seeks a soft lock while you attempt to go lethal. Your build seems a bit to Aggro-ish and like the previous poster mentioned there isn't enough slots dedicated to disruption-control.
V/R Masta