RU Control? Is a modified version of Mike Cannon's deck design. The deck has been designed to use Spellheart Chimera as a win condition. Control vs Control appears to be the most superior matchup. Grull and Rakdos Midrangish/Controlish decks appear to be the hardest with mizzium quickly becoming worthless. This forces the three essence scatter from a typical side board to a mainboard card over syncopate. The two Ral's server the purpose of slowing down my death agianst these two decks aswell. Ral is quickly replaced with the Aetherlings come control mirror. A turn five to turn six Spellheart is easily a game threat with this deck, averaging roughly 5-7 power by that point in the game and quickly getting out of control with either of the two main drawing power cards (Steam Augury and Thoughtflare). Not sure if the fourth spell heart is better than another turn and burn or another essence scatter, but I think crashing a 5/3 SpellHeart into a 5/5 Mistcutter is a very favorable trade (with burn spell reach it can hit even harder, Lightning striking over a combat trick will give a 4 damage difference in favor of Spellheart killing the Mistcutter).