Mass Invisibility (Illusion/Phantasm)
Level: Bard 7, Mage 7, Sorcerer 7
Range: 10 yards/level
Duration: 1 round/level
Casting Time: 5
Area of Effect: 100-yard radius
Saving Throw: None

Upon casting this spell the wizard causes all creatures within the area of effect to be affected by the spell Improved Invisibility. This spell is similar to the invisibility spell, but the recipient is able to attack, either by missile discharge, melee combat, or spellcasting, and remain unseen. Note, however, that there are sometimes telltale traces, a shimmering, so that an observant opponent can attack the invisible spell recipient. These traces are only noticeable when specifically looked for (after the invisible character has made his presence known). Attacks against the invisible character suffer -4 penalties to the attack rolls, and the invisible character's saving throws are made with a +4 bonus.