Mass Invisibility

Range: 240 ft
Duration: See below
Level: M7

This spell makes 1d3 hundred man or horse-sized creatures (or objects) invisible, as if they had been affected by a single Invisibility spell. The spell can also affect up to 6 creatures of dragon size. As with the invisibility spell, the enchantment lasts until dispelled or until the creature makes an attack.

Mass Invisibility

Beneath the Borderlands SurrenderMonkey