Source: Paths of Prestige, pg(s). 44
Because Razmir is not a true god, his priests cannot cast true divine spells, instead using arcane magic to mask their deficiency. Healing, normally a staple of all clerics, is a particular problem for Razmiran priests, who use obscure arcane magic, folk remedies, and so-called "holy" artifacts to cure. They are quite convincing, and are able to dupe most commoners who see them perform their magic.