Warp scrolls

 are used to increase the quality of your equipment. It's available on the game shop.
 * High quality tools increase the chance to craft an item above your current skill level.
 * High quality weapons deal more damage.
 * High quality armors increase the defense and/or dodge chance.
 * High quality shields increase the chance to block.

It can be found hunting treasures, looting creatures in and opening chests.