Arcanical exo-skeleton “suits” which require a pilot to operate. They come in many different models, some even equipped with flight capabilities. The pilots of these suits adopt the senses of the suit, and the suit in turn responds to the pilot’s movement. They are ludicrously expensive to produce, and require a lot of SPRKs to operate.

Pilots who are hooked into an Echo Suit for too long develop a condition called Bilge Poisoning.