I like the general idea, but since your deck is SO cheap (mana-wise), I almost think that you could afford to break the mana down even more, and run with 14-15 mana total in the deck. This would allow you another 5-6 1cost spells/creatures to even out the deck's utility.
Even with a bad draw, being all 1 costs allows you to ramp up into game quickly, so having more tricks up your sleeve would be more ideal.