Sachem skinweaver

The Sachem skinweaver is a Tier 10 healing familiar that can only be created in the Daemonheim dungeons at level 99 Summoning. Its special move, Glimmer of light, can restore 100 of the player's life points.

Sachem skinweaver pouch
A Sachem skinweaver pouch is made by using a Summoning obelisk with a Blue charm and two cooked Cave morays in the player's inventory. Making the pouch earns 852.5 experience points. Using the pouch to summon a Sachem skinweaver gains 5.5 experience points, and costs 8 Summoning points.

Glimmer of light (tier 10) scroll
Glimmer of light enables the use of the Glimmer of light special move for a Sachem skinweaver. Using a Sachem skinweaver pouch on a Summoning obelisk creates 10 scrolls.

Each use of the scroll restores 100 life points and costs 13 special move points.

The glimmer of light scroll is not very practical for bosses unless a player is willing to continuosly cast group gatestone teleport/gatestone teleport to a location outside the boss and heal. However the scrolls are highly valued for general clearing (as 10 scrolls heal 1000 hp at the cost of 2 cave morays of 500(+60)lp)