Transmute: Primal Might

Transmute: Primal Might is a sub-skill of Alchemy which allows the Alchemist to transmute 5 primals into one.

Source
The recipe is sold by:


 * in The Exodar
 * in Silvermoon City
 * in The Exodar
 * in Silvermoon City
 * in Shattrath City