I posted a comment

This deck doesn't seem to have an actual way to win. I pitted it against one of my decks and while I sure did lose a lot of creatures after they were turned into frogs, I eventually had more creatures than your deck had ways to kill them and I won.

Enigma Drake seems like a good win-con. Why only have two of them? Blazing Volley could be good for wiping all of your opponent's creatures with Polymorphist's Jest. Or maybe Fire Ants, so you don't have to spend two cards just to kill one creature.

Made several changes recently to improve the deck. Nivix Guildmage was replaced with Ral, Storm Conduit, who does the same thing without ongoing mana costs. The number of Enigma Drakes has been increased to 4 to take advantage of the large number of instants in the deck. Primal Amulet  ^Flip was replaced with Dual Casting, which provides copy-power much faster. Flame Javelin was also added for situations where the deck needs a little more damage, such as sniping planeswalkers or finishing off players. Experimental Overload was added as a late-game play to take advantage of casting.