I think BoP is not a spell to be relied on anymore, you can take it and try to cast it , but building your list around this spell is going to give you a hard time IMHO.
First it is cast on a 7, which is about 58% chance of getting it cast (Maggotkin has no ability to get +1 to cast this spell). This means on 5 turns, you will at most be able to cast it 3 times.
Now get into account the ability for your opponent to unbind it,
with some chance, it will go off 2 times per game,with 3 games, I cast it 2 times, and it got unbinded every time.
I won those games, but it is not thanks to BoP