Most likely... or actually, for sure, it's the battlefield itself that acts as a catalystTrue, but that's not all of itAnd that would be one of the reason why detections are not working against the enemyEven if we think that the demons are mix of many souls, it's hard to think that a single ship is their vesselIf the ocean itself is their vessel, then they exist everywhere within that ocean. But at the same time, until they materialized themselves, they are nowhereWhat does that mean ?