I will agree that it is situational, but you should think long and hard about whether or not you want to forgo the card advantage that LongDono speaks of. All of a sudden, those 5-6 CC cards you threw in are 10 or 12, and not many decks feature 10 or 12 creatures to kill. Same goes for any Bolts, PC, healing sources, etc. While I don't necessarily want a deck relying on Miracles to have double Dexterity, I can't think of many other cases where I don't want it.