It could be good for ORPGs, but it may be a little cheap for melee like games or arena style games. You may want to add a chance that it doeesn't create a potion at all, just to make it a little less powerfull.
Anyway, it's like an alchemy spell, but no dialogs. That's good because it doesn't leave you so vulnerable. No vote for now.
This spell creates a Potion of Healing, with a chance to create a Potion of Greater Healing. You get experience depending on which kind of potion you make. On level 5 you always create Potions of Greater Healing.