Ravenar

Ravenar, a glossy, black variety of tourmaline

that is also called schorl, is highly valued in the northern

half of Faerûn. The gem is less prized in other lands,

where it carries little value. Ravenar is commonly used for

inlay work on daggers, buckles, and the like.

A ravenar included in any wand with a spell that has

the sonic descriptor increases the save DC against the

wand’s effect by +1. If no saving throw applies or is allowed,

it instead adds +1 to the effective caster level of

the effect.