Breath of the Artisan

Guild Castle Facility Building Material A necessary part of crafting the best facilities for the Guild Castle.
The Guild Leader can obtain one every week, through the Energy Stone, after clearing a Weekly Quest. It can also appear as a low-chance boss monster drop.
During Guild Castle decoration/room blueprint quests, you can donate these to Benedict in the Guild Castle.
Guild Castle facility materials are removed every Monday at 12:00 AM.
Facility materials are removed from your inventory upon leaving a guild/getting kicked, or upon completing/canceling a blueprint.