The Stone of Jas engram is an item used in the Memorial to Guthix Distraction and Diversion. It can be found in the Fist of Guthix lobby, on a shelf near the rewards trader. Stored Power is the benefit of this engram, when active the benefits from fully completing a Guthixian Cache will be bottled for later use.
It can be right-clicked to teleport the player to Memorial to Guthix.
This engram is charged using the following items: