Tamiyo, Inquisitive Student // Tamiyo, Seasoned Scholar (Borderless, Bundle Promo)

'Flying
Whenever Tamiyo attacks, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")
When you draw your third card in a turn, exile Tamiyo, then return her to the battlefield transformed under her owner's control.