Hmmmm.
Being able to create any kind of creature would be pretty hawt.
Seriously. I don't like fights, so instead of me fighting, I'll create a big monster to scare the other person away.
...Not only that, it would also be a great help in many kind of situations... e.g. there's a wounded person in the edge of death, and he has to be quickly taken to hospital.
that or make a creature that makes some kind of healing shit.
Weakness would be probably me myself, 'cause I'm rather weak... At least currently.
But then again... All the creatures would defend me, right?