Once you have the sharp fang, you’ll need a Chatacabra Certificate (which you should have from the first story mission), as well as two Chatacabra Scales and a Chatacabra Jaw to build the Chatacabra Coil, the later of which you can get by breaking a Chatacabra’s face in te middle of a hung.

Getting the best possible start in Monster Hunter Wilds can make a huge difference to one's playthrough while also saving a fair bit of time.