Wallbreaker Crystal (3.5e Equipment)

Wallbreaker Crystal
Summary::In the arms race to make oneself immune to things, there is always someone else trying their hardest to make sure things stay vulnerable.

A weapon with this crystal attached does an extra 1d6 points of damage to anything with an immunity or partial immunity to critical hits or precision damage that was not granted by a type, subtype, or racial ability, such as the effects of Fortification.
 * Least

As the least crystal and the weapon reduces the amount of immunity they have by half for 1 round. If they had full immunity they now only have a 50% chance to negate such things, etc.
 * Lesser

As the lesser crystal and on a successful critical, the immunities are completely negated for 1d4+3 rounds.
 * Greater

Aura: Faint (DC 17) evocation Price: Cost::1,000 gp (Least), Cost::4,000 gp (Lesser), Cost::8,000 gp (Greater)