Each hive has a queen that fights like a 10 Hit Dice sha’az with 10th-level clerical spellcasting abilities.
A queen lays eight-pound eggs that ensure the survival of the hive. She is the only sha’az capable of casting spells and of making magical objects.
A queen lives several centuries. Occasionally, she engenders another queen who leaves when it is an adult so it may establish another hive. This new hive is a loyal vassal of the motherqueen.
Social status among sha’az depends on how close to the mother-queen one’s hive belongs. There can be many layers of mother-daughter allegiances among sha’az hives. When a queen dies, her drones ritually seal the entrance to her hive. Soon thereafter the mourning hive dies of asphyxiation. Its vassal hives, if any, then become vassals of the oldest related mother-queen.
I dunno. We could make her a 10 HD monstrous humanoid that casts spells as a 10th level cleric (with the spellcasting stacking with any later levels in cleric acquired) and with the Item Mastery ability, letting her use any magical item and giving her some item crafting feats as bonus feats.