Magic Anvil, Greater
Level: Sor/Wiz 7
Components: V, S, M
Casting Time: 1 full-round action
Range: Medium (100 ft + 10 ft/level)
Effect: One steel anvil created at least 10 feet in the air.
Duration: 2 minutes/level
Saving Throw: None; see text
Spell Resistance: Yes; see text
Greater Magic Anvil is the fully-realized version of the original magic anvil spell. It is no longer a force-based effect, but it is still magical and so can affect incorporeal creatures as usual (though not ethereal ones). It causes a large steel anvil to appear above the target’s head (or body if there is no head), dealing damage based on the height it was created and the mass of the anvil. If the creature is amorphous or otherwise not subject to critical hits, the anvil deals half damage. The anvil is simultaneously considered to be dark iron, silvered, magical, and bludgeoning, thus overcoming all of those damage reductions. It lasts for 2 minutes/level (usually on the ground) and afterwards disappears, leaving behind a single copper piece of local currency. The anvil strikes unerringly unless the caster fails to overcome spell resistance, in which case the target may make a Dex save for half damage.
At the time of casting, the caster may manipulate two variables: the height of the anvil and the mass of the anvil. The height must be between 10 and 100 feet and may be limited by the environment. The caster must have line of sight to the space where the anvil is to be created. For each 10 feet of height, the anvil deals 1d6 points of damage as per the rules for falling objects. If the anvil strikes something else first, that object receives the full damage and if the anvil continues through the object, treat its height as from the point where it broke through the object. The mass of the anvil must be between 200 and 2000 pounds. For each 200 pounds, the anvil deals another 1d6 points of damage as per the rules for falling objects. This factor is not limited by the environment, but by the material component used by the caster. When crafted into a magic item, the crafter determines the mass, but the user determines the height.
For example: a 200 lb anvil falling 10 feet deals 2d6 points of damage. If the weight were 1000 lbs, it would deal 6d6 points of damage (5d6 from mass and 1d6 from height). A 1000 lb anvil falling 50 feet deals 10d6 points of damage. A 200 lb anvil falling 100 feet, but hitting a roof 50 ft above the target, deals 6d6 points of damage (1d6 from mass and 5d6 from height).
Material Component: one ounce of iron/steel for each hundred pounds of mass of anvil.