Turn 3 win! (Standard)

This deck is deck named 'dogs in boats'. It's a deck legal in standard that can win in turn 3!!!
How:
Turn 1: Consulate Dreadnought
Turn 2: 2 Toolcraft Exemplar - crew Consulate Dreadnought and attack for 7 damage.
Turn 3: Lupine Prototype + Topplegeist - Tap opponent's defender, crew Consulate Dreadnought with them and attack with 2 Toolcraft Exemplars + Consulate Dreadnought for 13 damage.

Tips:
Key to the City - It's good to have less cards in hand for Lupine Prototype to attack or block, so this is second option (the first is casting) how to have less cards. And Consulate Dreadnought that can't be blocked is not bad.
Stitcher's Graft + Always Watching - attacking creature don't tap and have +4/+4. Or it is good for crewing, because that is not attack.
Gryff's Boon - gives flying for your creatures, so they are not that easily blocked.
Built to Last - More damage + indestructible (against spells)
+mulligening is better option if you don't have some of main cards in hand, because it is important to have there main cards (it's quicker) and mulligening is good for Lupine Prototype.

Look at this deck, enjoy and give like!
Made by @Benjamin
For another version which gived me inspiration:
http://tappedout.net/mtg-decks/craig-wescoes-dogs-in-boats/