Equipments in the Asura Force world are divided into white, green, blue, purple and orange totally 5 qualities.  Players are able to upgrade equipment to improve its quality and attributes by using Touch Stone.

Note: Using Touch Stone will reduce 2 enhancement levels of the equipment and equipment attributes will change randomly.

Descriptions:

Touch Stone (lvl 2): Use it to upgrade a piece of equipment from green quality to blue quality.  Players have a chance to get it by refreshing the limited item zone in in-game shop. 

Touch Stone (lvl 3): Use it to upgrade a piece of equipment from blue quality to purple quality.  Players can get it mainly from events’ drop.

Touch Stone (lvl 4): Use it to upgrade a piece of equipment from purple quality to orange quality.  Players can get it mainly from events’ drop.

How to use it?

Right click Touch Stone, the mouse pointer will turn to hammer shape, then left click the equipment that need to be upgraded to carry out quality upgrade.