Changelings

Description
Shapeshifters are truly perplexing creatures. They assume the form of their enemy before entering combat, mimicing all their strengths and weaknesses. In their natural form, they utilize their large maws and sharp, dagger-like teeth in order to bite their opponents, laughing maniacally all the while. Upon death, Changelings disintegrate into nothing. The schooled adventurer should have no problem dispatching these creatures.

Changelings can be encountered everywhere.