Your apprentices in the Mage stronghold make a Staff of Power not the Staff of the Magi:
Staff of Power
A mage's staff is far more than just a gilded walking stick, most being enchanted to an impressive degree. This one is no exception, and whoever the previous owner was, they were powerful indeed. It enables a mage to better escape hostile magic and avoid physical blows, and can erect a Globe of Invulnerability (one charge). Offensively it can be used in melee very well, and cast a Lightning Bolt (one charge).
STATISTICS
Saving Throws: +2 bonus
Armor Class: +2 bonus
Abilities (one charge):
Globe of Invulnerability
Duration: 1 round/level
Range: User
Area: 5-foot-radius sphere
Grants immunity to 1st to 4th level spells.
Lightning Bolt of Paralyzation
Damage: 10d6
Range: 140 yards
Saving throw: for half damage
Also stuns (no save) the target for 5 rounds
THAC0: +2 bonus
Damage: 1D6 +2
Damage type: crushing
Weight: 3
Speed Factor: 1
Proficiency Type: Quarterstaff
Type: 2-handed
Requires: 5 Strength
Usable By
Mages
The Staff of Earth can be purchased off a merchant in the Drow city:
Staff of Earth
Linked to the Plane of Earth, this staff may have been fashioned by an ancient druidic sect. It can summon an Earth Elemental, though it also has the potential to slay such creatures in a single blow, possibly hinting at how difficult it is to control them. It can also free a person from the earth by casting Stone to Flesh. Some abilities are limited by charges.
STATISTICS
Combat Abilities: If an earth elemental is hit it must save vs. spells or be destroyed
Abilities: (one charge)
Summon an 8 hit dice Earth Elemental
Duration: 1 hour
Stone to Flesh
Revert effects of a petrification attack
THAC0: +2 bonus
Damage: 1D6 + 2
Damage type: crushing
Weight: 3
Speed Factor: 1
Proficiency Type: Quarterstaff
Type: 2-handed
Requires: 5 Strength
Not Usable By:
Monk
The Staff of Fire can be found in the Planar Sphere:
Staff of Fire
This staff bears an ancient rune that may link it to the wizards of faraway Halruaa, but it is impossible to be certain. Drawing from the Plane of Fire it can erupt in a Fire Shield that damages attackers, it can summon a Fire Elemental under the control of the wielder, and it can potentially draw all the energy from any fire elemental that it hits, destroying them instantly. Some abilities are limited with charges however.
STATISTICS
Combat Abilities: If a fire elemental is hit it must save vs. spells or be destroyed
Abilities: (one charge)
Summon an 8 hit dice Fire Elemental
Duration: 1 hour
Fire Shield (Red)
A protective shield that surrounds the wielder of the staff as per the 4th level wizard spell Fire Shield (Red).
THAC0: +2 bonus
Damage: 1D6 + 2
Damage type: crushing
Weight: 3
Speed Factor: 1
Proficiency Type: Quarterstaff
Type: 2-handed
Requires: 5 Strength
Not Usable By:
Monk
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"This place will be your tomb."