This deck is basically a mix out of Medivh-Mage and Reonlock. It got a ton of Win Conditions against Control and it has enough AOE an Tech Choices to stand against Aggro. In this deck it's all about the Mulligan, because of prince Malchezaar, Fledgling is an insta Keep in every match, it performs especially great against Control, if they don't get any removal for it. And even if you don't get him is this deck good against all Kind of Control, because you have Cards like Malchezaar, Kazakus, Jarraxus, Kabal trafficer, etc. to cmpletely outvalue your Opponent.
Against Aggro-Shaman/Druid/Pirate-Warrior: These are the decks, where M.C. Tech really shines, because this decks, usually try to flood the board as soon as possible. Use all your AOE to Keep the board clean, and then take it over. This deck has a lot of antiaggro choices which should help you, to win these matchups. Against Pirate Warrior you should try to go for a quick win, because they can burst you down with weapons very quick.
Against all the midrange style Priests: Use your AOE to lead to an strong late game, where they can't stand against you. Twilight drake is a insta keep and can win the game on it's own.
Against Medivh-Mage: Against Medivh-Mage you should try to get pressure on them, so they have to use all their burn spells on minions an not to burst you down, then finish them with Jaraxxus. Also try to save your ooze for their Medivh.
Against Taunt-Warrior: Here you can go for a quick and a slow game, in the quick game, you have to get enough chip damage through, so you can finish them off, before they can recover with Sulfuras. In the slow game, try to bait out their Brawls, and than flood the board constantly after Sulfuras, so you can finish them in the value game