first, it was busted to stop an exploit (transforming monsters). Then they fixed the exploit, and another 'exploit' was discovered (useing them to mission blitz). So funcom made the spell (amongst others) not usuable inside. The biograft (or at least, mine) was still bugged. When I tried to use it, I would get the error message "Invalid Datatype Playfield=0?.." or something really close to that. With the newest patch, they (or at least, mine) are still busted.
Now it just locks the skill for the right amount of time..but doesn't transform me. No error message, and it looks like it should transform, but I don't.
AAARRRGGG!!!!
P.S. I'm just about to submit this (copy/paste style) as a bugreport, so don't bother telling me to do so.