Crystal of Screening

Price (Item Level): 400 gp (2nd) (least), 1,000 gp (4th) (lesser), or 3,000 gp (7th) (greater)

Body Slot: — (armor crystal)

Caster Level: 5th

Aura: Faint; (DC 17) abjuration

Activation: —

Weight: —

This smooth, deep blue crystal is warm to the touch.

A crystal of screening enhances a suit of armor with force, enabling it to protect you against the attacks of incorporeal foes.

Least: This augment crystal imposes a –⁠2 penalty on touch attacks made against you by incorporeal creatures.

Lesser: As the least crystal, except the penalty is –⁠5.

Greater: As the least crystal, except the penalty is –⁠10.

Prerequisites: Craft Magic Arms and Armor, mage armor.

Cost to Create: 200 gp, 16 XP, 1 day (least); 500 gp, 40 XP, 1 day (lesser); 1,500 gp, 120 XP, 3 days (greater).

Source: Magic Item Compendium, page 26.