|Level||Bard 2,Sorcerer/Wizard 2, Assassin2, Trickery2|
Invisibility is a spell that causes the target to become invisible for a period of time. The caster will immediately reveal itself upon attacking another person or creature.
Items dropped or put down by an invisible creature become visible; items picked up disappear if tucked into the clothing or pouches worn by the creature. Light never becomes invisible, although a source of light can (the effect is that of a light with no visible source). Any part of an item that the subject carries but that extends more than 10 feet from her becomes visible, such as a trailing rope. Of course, the subject is not magically silenced, and certain other conditions can render her detectable (such as stepping in a puddle). The spell ends if the subject attacks any creature. For purposes of this spell, an “attack” includes any spell targeting a foe or whose area or effect includes a foe. (Exactly who is a foe depends on the invisible character’s perceptions.) Actions directed at unattended objects do not break the spell. Causing harm indirectly is not an attack. Thus, an invisible being can open doors, talk, eat, climb stairs, summon monsters and have them attack for her, cut the ropes holding a rope bridge while enemies are on the bridge, remotely trigger traps, open a portcullis to release attack dogs, and so on. If she attacks directly, however, she immediately becomes visible along with all her gear. Note that spells that specifically affect allies but not foes are not attacks for this purpose, even when they include foes in their area.
It's difficult to coordinate when you're used to seeing yourself move. Invisible characters take a penalty to Balance, Climb, Escape Artist, Jump, Move Silently, and Tumble checks equal to (10- the level of the invisibility spell cast on them).
Creatures with invisibility as a spell-like or supernatural ability do not suffer this drawback.