Look, Sento has had some thoroughly bizarre exchanges with other Trainers who were native to this world not long ago, and so for the time being all future encounters must be sarcastically measured against that utterly ridiculous yardstick, in Sento's mind. But Sento follows that point. "Ah. Well. I suppose that explains a lot." He takes the appearance of the gaseous creature in stride. "Tank, don't just drive it away, try to knock it out so I can catch it--I want to study it if possible."