Warning: This is 3.0 Edition material. It is possible that there is more recent 3.5 Edition version.

Fiendish Quickening

(Book of Vile Darkness)

Level: Cleric 6, Sorcerer 6, Wizard 6,
Components: V, S, Fiend
Casting Time: 1 full round
Range: Personal
Target: Caster
Duration: 1 round/level

For the duration of this spell, the caster's teleport or teleport without error spell-like ability is quickened.
This means that the caster can teleport as a free action and still have time during the round to attack and/or move.
The caster can use his quickened teleport or teleport without error once per round.
This spell does not affect teleport spells in any way, only the spell-like ability of fiends to teleport themselves.