The enchantments-stacking build is very good but with the expansion their are a few cards that can make a huge difference against this build: specially the 2 cards that destroys all enchantment in the zone and the card that destroys all enchantments on a target.
Okay, you can counter 1 with a nullify/reverse magic but it won't be enough. If I saw that your abusing enchantment I would make sure that my spell hits it target so that all your enchantments are gone. I would prepare a decoy and one of the above spells. Before I move I would use my quickcast en then as a full action I play the spell.
The above spells cost a lot of mana but its worth it.
If your opponent isn't prepared for this strategy then its a very good build/strategy.
With an enchantment based deck and your comments above, all your doing is removing enchantmens while the BM is pounding on you. Remember the Faella is constantly putting enchantments and as a quick spell the BM is also putting enchantment so in his turn he is really putting up the pain.
I tried this opening as I mentioned above, death of a mage in only a few turns. I stopped doing this strategy because it makes the game too quick. I like long strategic battles where me an my opponent have like less than 10 cards left in our spellbook because all our creatures are dead (we used up all our incantation, attack spells, equipment) and we have like 5 life each.
The weakness of this strategy is if your opponent knows how powerful this is they would kill Faella first with a one hit kill (Thunderbolt) + Unavoidable (incantation).