Here's a cool weapon from an underdark campaign we ran once. it's made for 3rd ed D&DMorning sorrow
intelegent mageblade rapier
Alignment: Lawful Evil
Communication: telepathic (wielder only)
Languages: Common, Undercommon, Elven*, Infernal*, Terran*, Aquan*
Damage: 1d6+1 piercing
Threat range: 18-20/x2
Estimated value: 125,320 GP
Charge points | Enchantment bonus | Special abilities | Int | Wis | Cha | Ego |
0+ | +1 | Martial weapon proficiency (rapier), Black light | 13 | 11 | 17 | 7 |
5+ | +1 | Charged | 13 | 11 | 17 | 8 |
15+ | +2 | - | 15 | 12 | 19 | 12 |
30+ | +2 | Mind feeder | 15 | 12 | 19 | 14 |
50+ | +3 | - | 17 | 13 | 22 | 18 |
80+ | +3 | Keen | 17 | 13 | 22 | 18 |
130+ | +4 | - | 19 | 14 | 24 | 23 |
200+ | +4 | Spell storing | 19 | 14 | 24 | 24 |
300+ | +5 | - | 21 | 15 | 27 | 27 |
Special abilities
Mage blade: The weapon is treated as a +1 weapon, and can be feed magic to unlock additional abilities. The weapon gains 1 point of charge for every spell level fed to it.
Martial weapon proficiency (rapier): The wielder is proficient with rapiers for as long as they hold the weapon.
Black light: The weapon glows with an eery black light on command, allowing the wielder to see up to 10 feet even in magical darkness.
Charged: On a successful strike, up to 5 points of charge may be sacrificed to deal an additional 1d6 damage per point of charge spent.
Mind feeder: On a critical hit, the target looses one spell of the highest level they can cast (if applicable) chosen at random, and the weapon gains charge equal to the level of the spell lost. Spontaneous spell casters and creatures with spell like abilities loose access to the eaten spell for 1 minute.
Keen: the threat range becomes 15-20/x2
Spell storing: A spell of up to 3rd level can be cast into the weapon. The spell can then be cast once as a free action, any time the weapon strikes a target.