Brood Communication

Khalled turned back to the group. “We see them almost daily. But they seem to be passing around us. They are odd. First they seem brutes, but then sometimes they do things with extreme forethought. Like the ambushes they have caught us in.”

Sorin said nothing, but Nissa knew he possessed secrets of the brood that he had yet to reveal. “They’re like ants,” Nissa said. “It’s like they talk with their tentacles like ants do with their antennae.”

Zendikar: In the Teeth of Akoum (Magic: The Gathering), Chapter 3