Two-Bladed Mind Blade
(Complete Psionic, page 58, DnD 3.5)
[Psionic]
When you reshape your mind blade, you can change it into an exotic weapon: a two-bladed sword.
Prerequisite
Ability to generate a mind blade, shape mind blade class feature
Benefit
Any time you wish to reshape your mind blade using your shape mind blade class feature, you can add the two-bladed sword to your shape repertoire. You are proficient with your two-bladed sword mind blade--you are treated as if you possess the Exotic Weapon Proficiency (two-bladed sword mind blade). The weapon is sized appropriately for you and deals damage as a two-bladed sword.