Fang of Watatsumi is a simple side subquest of the Moon Bathed Deep Quest, Many people are having trouble completing the quest properly. So I have decided to create a simple guide that will help you to do so.
The quest can be found on your map, you can see it top left to Sangonomiya Shirine or you can open up your quest list and fast travel to the waypoint.
The shrine is completely sealed. You need to interact with it to get it open. All you have to do is “Read the stone tablet at the fang” As so can see in the image below there is a stone tablet.
After reading the stone tablet, You have to head onto the “Ley Line Monolith” and click activate to start the quest.
How to protect the Ley Line Monolith easily
Protecting Ley Line monolith is not a very easy task because there gonna be so many enemies spawning for 3 minutes. You need to keep on dominating and killing the enemies which will help you to reduce the cooldown even faster.
I will suggest you complete the quest with your friends or in coop mode because the enemies are strong and they will keep on coming for the Ley Line monolith and start damaging it.
All you have to do is kill all the enemies from the first wave except a Hilichurl caster. This will stop all other enemies from spawning. Simply interrupt him after a few seconds and wait for the timer to complete.
Make sure you don’t kill him even after the cooldown is completed. I hope this guide helped you to complete your quest, if you have any questions ask in the comments below.