Creature re skin blade

In siralim 2 you were able to change creatures skin to look like a different creature. I keep looking for a way to do this. Perhaps i have missed it somewher, or maybe it is unocked later? I have almost all gods maxed out so far and hasnt showed up. Anyway my suggestion would be to add a new item like the gore knife.
You could use it to sacrafice a creature taking its skin in the process. Then you can apply that creatures skin to any other creature changing its appearance.