Formula: Enchant Chest - Lesser Mana

Formula: Enchant Chest - Lesser Mana teaches an enchanter Enchant Chest - Lesser Mana.

Source
Vended by:
 * in The Drag in Orgrimmar (limited supply (1))
 * in Sepulcher in Silverpine Forest (limited supply (1))

The only way for an Alliance character to obtain this item is through the neutral auction house.