You know how to charge an essence shard—a stable piece of energy of a sphere. A channeler who uses an essence shard can use its essence to channel an incantation with more incantation.
Prerequisite: Channeler level 1st.
Benefit: You can charge an essence shard with the energy of a sphere from which you can channel incantations (see Chapter 6: Magic Items for more information). The market price of a temporary essence shard is the bonus granted to channeling checks squared x 500; the market price of a stable essence shard is the bonus granted to channeling checks squared x 5,000. You must spend 1/25 of the market price in XP and use materials costing 1/2 the market price. Charging an essence shard takes 1 day for each 1,000 gp of its market price.
Like a potion or a scroll, a temporary essence shard can be used only once, while a stable essence shard can be recharged, somewhat like a cognizance crystal.