Wonder of U is a sentient Stand that is, unlike most Stands in the series, considerably expressive and holds a calm yet threatening demeanor. The Stand repeatedly goads its enemies into pursuing and triggering its ability, through mockery or threats. Wonder of U's primary ability allows it to manipulate a "natural law of calamity", which is a form of negative energy independent from the Stand. It is automatic and functions at a long range, making it extremely dangerous.