The Blood moon is an event that can be active in Yaesha, marked by a reddish sky and big moon. Every time you travel to Yaesha from another location has a chance to trigger a blood moon, so just keep traveling back and forth from Ward 13 and keep checking the sky.
During a blood moon, there will be wisps flying around the village huts on Yaesha, and if you shoot them you will get a Blood Moon Essence that can be used at the altar to craft items. You can walk back and forth through a gold gate to respawn the wisps to farm them without losing the moon event. Dying ends the event, and resting at a crystal doesnt respawn the wisps.
The Blood moon altar can be found in The forbidden grove, the first area on the main path towards your objective, marked as a blue altar on your map. Just craft any item at the altar and the achievement is yours!
During the blood moon there are also special floors in certain maps that will open that’s needed to get