Perdus, Supreme Inquirer

Flying
Whenever you cast a spell during your turn, investigate. (To investigate, create a colorless Clue artifact token with " {2}, Sacrifice this artifact: Draw a card.")
Whenever you sacrifice a Clue, scry 1, then reveal the next card you draw. If it is a nonland card, counter all spells you don't own on the stack that share a card type with it.