Donna Noble is a rare Legendary Creature — Human card from Doctor Who (WHO), collector number 82. Current market price: $0.37 (foil $0.59), TCGplayer market prices via Scryfall.
Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.) Whenever Donna Noble or a creature it's paired with is dealt damage, Donna Noble deals that much damage to target opponent. Doctor's companion (You can have two commanders if the other is the Doctor.)