There seems to be a little problem, though, looks like Helena's will turned to be stronger than we thought, so she's reasonabily pissed about it, but the only sounds she can make are moos like a cow's. Though her hooves might be quite dangerous.

Luckily, another spell will take care of the now enraged cow-girl, the blast hits her head, and seconds later, her brain explodes within her own skull; seconds later, she reacts as expected, and completes her transformation into a docile cow-fuck slave.