Anti-Gravity
(Alteration, Enchantment)

Range:  10 feet per level
Components:  V, S, M
Duration:  Permanent
Casting Time:  9 hours per 10-foot cube
Area of Effect:  10-foot cube per level or special
Saving Throw:  Negates

This spell reduces the effect of gravity to absolute zero in the area of effect thus causing anything to effectively float with no weight (note the mass still exists (while a vault door weighs nothing it still can crush someone who has the unfortunate luck of being between it and its door frame)). It can be lain on an area without a focusing object but in that case it is limited to the area of effect noted above. If a focusing object is used the casting time changes to 1 hour per 10 feet per level per side cube. The focusing object is not destroyed in the casting but if it is ever moved from its place or even touched by the caster after the enchantment is placed the spell fails immediately.
Once the spell is in effect anything within the area of effect of one 10-foot cube per level can be moved almost without effort (unless it is very large). If the spell is focused on an object then the object is within the centre of the cube. This cube then measures 10 feet per level per side (an 18th-level wizard creates a 180-foot cube).
The material component (even without the focusing object) is a hollow diamond which has a perfectly round hollow inside without having any hinges. This diamond must have cost a least 10,000 gp before being hollowed out. The focusing object (if it is used) has to be a completely priceless object which is absolutely unique such as the largest gem ever found on the planet, the complete and untarnished set of platinum teeth of the poorest man ever to have lived on the planet or something likewise illogical or (almost) impossible (as the DM desires for that special case).

