Hive Mind. Spawn of Arbeyach share a bond with other members of their hive that enhances their hive mates' perception. As long as a spawn is within 60 feet of at least one hive mate, it has advantage on initiative rolls and Wisdom (Perception) checks. If one spawn is aware of a particular danger, all others in the hive are, too. No spawn in a hive mind is surprised at the beginning of an encounter unless all of them are.

Innate Spellcasting. The spawn of Arbeyach's spellcasting ability is Charisma. The Spawn of Arbeyach can innately cast the following spells, requiring no material components: 1/day: conjure animals (only swarms of insects) Scent Communication. Spawn of Arbeyach can communicate with each other and all swarms of insects within 60 feet via pheromone transmission. In a hive, this range extends to cover the entire hive. This is a silent and instantaneous mode of communication that only Arbeyach, spawn of Arbeyach, and swarms of insects can understand. As a bonus action, the spawn of Arbeyach can use this trait to control and give orders to one swarm of insects within 60 feet.