I don't know if this'd be a buff or a nerf, but, IMHO, as it is right now is pretty fine, except for the evading part. I'd rather make it so that the probabilities to evade it are always of the 50%, will it be with 1, 2, 3, 4, 5 or 6 copies.
Using the "real" probabilities is just mean to it, because 4 copies are about 68%, I'd recommend not.