Honestly, I don't think this deck is close to fast enough to compete in T1. First, taking a look at your mana curve, it's all very high (the average being 2 or above) and a decent amount of it being dual-colored. With this in mind, I don't think you're going to be able to establish yourself enough to fend off the other decks.
As for your card discussion:
Ivory Mask: WAY too slow for use against Storm decks. Honestly, a 4cc enchantment? Unless you can accelerate into it with a Lotus, I doubt this will help you at all.
Vindicate (and Sinkhole): Both of these are outdated; personally, I think Stifle does the job just as well. If you need removal, I would use a more EBA-esque setup wih 2-3 StP and 0-1 Vindicate.
Mystic Enforcer: See JPMeyer's
article on Suicide Black's competetiveness.

Monger: There are better beats than this guy, one of which is 'Tog (which would smash this guy like an egg).
Quirion Dryad: Honestly, this doesn't fit here - it's made for Gro-type decks. With this deck, you can't drop him and forget about him (like you can with GroATog) and you'll just be using him as a beatstick that takes too long to get going.
Honestly, I think you need to get better playtesting results before posting a deck like this in the Open Forum.
Edit: By the way, you spelled "Discussion" wrong.