Kuon’s flip ability looks at everything that happened during that turn, even before Kuon entered the battlefield.

Creatures put into graveyards after the end-of-turn step begins have no particular effect on Kuon.

Each Ascendant is legendary in both its unflipped and flipped forms. This means that effects that look for legendary creature cards, such as Time of Need and Captain Sisay, can find an Ascendant.