Spellflinging Spear

A spellflinging spear is a potent weapon highly prized by kobold sorcerers. These spears are awarded to kobold sorcerers for consistently protecting their lair without ever needing to be protected themselves. (Knowledge (history) DC 10 or Knowledge (local) DC 20) The ore that goes into making spellflinging spears is an amalgam of red copper and steel. (Profession (miner) DC 15 or Craft (armorsmithing, blacksmithing, or weaponsmithing) DC 25) A spellflinging spear is a Small +1 returning spell storing spear, the piercing blade of which is tinted with ruby red metal and has a shaft of light steel. As a swift action, speaking the word "expand" in Draconic (turalisjth) elongates the weapon, speaking the word "shrink" in Draconic (kosjth) shortens the weapon, and speaking the word "normal" in Draconic (munth) returns a spellflinging spear to normal size.
Once elongated, a spellflinging spear has all the characteristics of a longspear. Once shortened, a spellflinging spear has all the characteristics of a shortspear. A spellflinging spear always weighs as much as a spear and has hardness 12 and 20 hit points, regardless of its shape.
Strong evocation (plus the aura of the stored spell, if not already present) and transmutation; CL 12th. Craft Magic Arms and Armor, shrink item, telekinesis, CL 12th, 10,802 gp, 840 XP, 11 days.
Variants: More powerful versions of the spellflinging spear often add the distance and/or the gnome bane weapon special abilities. Adding one of these abilities increases the weapon's price by 14,000 gp; adding both increases it by 32,000 gp. Weight: 3 lb.; Price: 21,300 gp
Source: Races of the Dragon