Add a way to undo polymorph

[Firebarrage]

Polymorph combined with fireball makes for flaming dead unrecoverable animals littering the station. I had a round of few days ago as a wiz and really did a number on a pretty populated server. Here's my opinion that could balance it out:

- buff animals health across the board. Its not fair to be spawned as a bird to be crushed by a door, as funny as that is. Like sure, get crushed by the door but maybe you shouldn't die from it?

- increase likelihood of spawning as something dangerous, like a spider. This would mean wiz has a chance of it backfiring on him if he's not careful.

- increase the cooldown. Not by much, but even now it recharges too quickly. 

- allow brains to be extracted from butchered critters. Literally knife em to get their pelt/etc but also will produce a usable brain.

I third this