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

Improved Invisibility

(Player's Handbook 3.0)

Illusion (Glamer)
Level: Telflammar Shadowlord 2, Thayan Slaver 3, Bard 4, Sorcerer 4, Wizard 4,
Components: V, S,
Target: You or creature touched
Duration: 1 minute/level (D)
Saving Throw: Will negates (harmless)

As invisibility , except the spell doesn't end if the subject attacks.