Biggest concerns about this deck are denial of lifegain. [Imprisoned In The Moon], [Darksteel Mutation], [Swords to Ploughshares] deal with that but only [Nevinnyral's Disc] can stop enchantments already on the field
This deck is weak to [Everlasting Torment], [Rain of Gore] and [Tainted Remedy]. Not sure about solutions.
Possible solutions:
[Ayli, Eternal Pilgrim]
[Ertai, the Corrupted]