Psionic Inertial Barrier, or also sometimes just written as Inertial Barrier, is a Psionic Ability reserved for the Githyanki race creatures, some of which the game bestows this ability to, mostly from the Baldur's Gate II: Enhanced Edition and Baldur's Gate II: Throne of Bhaal games.
Gameplay[]
The githyanki creature aims this spell at itself and the spell is ForceSpell cast.
The spell is applied (usually to oneself) as a combat protection.
The psionic ability functions almost identically to the Wizard spell Protection From Normal Missiles. It has a duration of 5 Turns (300 seconds).
This spell is actually classified as a Psionic spell, but it really behaves like the Wizard spell, and it can be dispelled and taken down with a Breach.
However, unlike the BG2EE Wizard spell version, this psionic version protects against all normal arrow, thrown axe, bolt, bullet, dart, thrown dagger and spear projectiles.