Whenever a Knight you control deals combat damage to a player, put a +1/+1 counter on a creature and create a Blood token. (It's an artifact with “{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.”)
Near Mint - $0.90
Lightly Played - $0.80
Played - $0.70
Heavily Played - $0.60
Damaged - $0.50
Near Mint Non-English - $0.90
Lightly Played Non-English - $0.80
Played Non-English - $0.70
Heavily Played Non-English - $0.60
Damaged Non-English - $0.50