Invisibility, Greater

(Player's Handbook v.3.5, p. 245)

Illusion (Glamer)
Level: Bard 4, Jester 4, Wu Jen 4, Beguiler 4, Vigilante 4, Slayer of Domiel 4, Runescarred Berserker 4, Ebonmar Infiltrator 4, Wizard 4, Sorcerer 4, Sha'ir 4,
Components: V, S,
Target: You or creature touched
Duration: 1 round/level (D)
Saving Throw: Will negates (harmless)

This spell functions like invisibility, except that it doesn't end if the subject attacks.