Sawtooth

A Sawtooth will serve as the first enemy Aloy faces that can't just be one-shotted with a well-aimed arrow or stealth attack. It's a lot more durable than the Watchers and Striders faced beforehand, and its weak points are not as obvious and harder to hit. Stealth, combat finesse, and clever use of tools will be required to bring it down.

Example of:
Wake-Up Call Boss