A mysterious light silvery substance that seems to have an adverse effect on devils. Using the xasax against devils causes it to dissolve.
In Andoran, one pound of xasax is equivalent to 100 gp. In Cheliax, one pound of xasax is equivalent to 1,000 gp, but the substance is illegal in that country. This doesn’t prevent noble families from secretly stock piling the substance, vieing for power; power over the devils and each other.