Congrats! I like the deck overall, but I have some suggestions.

• Manathirst doesn't fit with your control theme. You want lots of 1-2 mana spells and to manathirst as a win condition in a mid-range deck. A second Guild Enforcer will suit you so much better. In this deck (with shaped blast) especially.
• If I'm going for 3 F2P ramp cards, its 2 Sips and 1 Mana Toad. Primarily, because Sip is a guaranteed extra pip the next turn. With toad, good opponents will ignore it and stall your ramp. Also, the extra mana gets you a 2/1 creature. Not great.

Nicely done this weekend!