Shiori Novella, Archiver

When Shiori Novella, Archiver enters the battlefield, create Ao Chan, a legendary colorless artifact token with hexproof and "Whenever you cast a creature spell, note one of
its creature types that hasn't been noted for this artifact."
{2},{t}: Draw a card for each creature type noted for target permanent you control named Ao Chan.
Choose a Background
(Volo, Itinerant Scholar)