Yavian goo

Yavian Goo, known for millenia simply as goo to the natives of that world, was a unique species of bacteria that had existed for billions of years on the planet Yavia, and was present in enormous amounts beneath that planet's surface and in its water. The bacteria had very volatile cells and DNA, and it had a tendency to transform into almost any other lifeform it was introduced to. The warlords of Yavia discovered that goo could be used to artificially create many advanced lifeforms with great speed, lifeforms which could be used in a war.