To show how efficient this card is for the right deck, the final versions of Miracle Grow, which were dubbed Super Grow, used Mystic Enforcer as a finisher, since by the time you'd get around to casting it you had an all but guaranteed 6/6 flyer for four mana
Draco, unfortunately doesn't really hold its own outside of Scion of the Ur-Dragon decks and just isn't likely to be run in many other decks
Over three turns, it ramps you with colorless mana, builds massive Construct tokens, and then fetches a 0- or 1-cost artifactusually something like Shadowspear or Expedition Map
Its a dark deck, and it creates a strange new world that ticks along to its own inscrutable rules.
Simply being a faster clock and a cheaper spell on first cast makes the exploits much easier and more punishing