[Fantasy] On the Origin of Magical Species: A Wizard Did It

[malloyd]

Originally Posted by RGTraynor

You don't need "crazy" wizards to be making things. You just need critical failures on Animal spells.

Or critical successes.

For GURPS you could easily introduce a variant of Create Servant where you can add an extra ability (at 16) for each animal heart you use as a material component, provided you don't mind the servant having other animal traits. On a critical success when the duration ends the servant is no longer under your control but does not disappear...