Ryan Sinclair is a rare Legendary Creature — Human card from Doctor Who (WHO), collector number 94. Current market price: $0.30 (foil $0.62), TCGplayer market prices via Scryfall.
Whenever Ryan attacks, exile cards from the top of your library until you exile a nonland card. You may cast the exiled card without paying its mana cost if it's a spell with mana value less than or equal to Ryan's power. Put the exiled cards not cast this way on the bottom of your library in a random order. Doctor's companion (You can have two commanders if the other is the Doctor.)