Arbane's Sword of Agility is an enchanted short sword +2. It has the usual bonus of +2 to THAC0, speed and damage, but it also grants the wearer immunity from hold person and it can be used once a day to haste the wielder for 12 seconds. The weapon has a weight of 2 lbs and it requires 5 strength to wield it. This item appears in Baldur's Gate II: Shadows of Amn. It is dropped by the first group of bandits you will be waylaid by when travelling in Shadows of Amn.
Arbane's Sword of Agility: One of many created in the name of the mage who first discovered how to enchant a blade in this manner, this was the weapon of the outlaw Garno, and many a cleric died at its edge. Garno became disillusioned with the gods when his family was put to the torch by clerics of Loviatar, and spent his life seeking revenge. Despite his focussed hatred of the devout, it is thought that one of the gods of chaos had a hand in Garno's acquisition of this sword, delighting in the havoc that followed the young man.