Metamagic rod, Empower, greater
(Dungeon Master's Guide v.3.5, page 236)
Price (Item Level): 73,000 gp (19th)
Body Slot: — (held)
Caster Level: 17th
Aura: Strong; (DC 23) no school
Activation: —
Weight: 5 lb.
You can cast up to three spells per day, of 9th level or lower, where damage is empowered as though affected by the Empower Spell feat.
Prerequisites: Craft Rod, Empower Spell.
Cost to Create: 36,500 gp, 2920 XP, 73 days.