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 - $4.00
Lightly Played - $3.60
Played - $2.80
Heavily Played - $2.40
Damaged - $2.00
Near Mint Non-English - $4.00
Lightly Played Non-English - $3.60
Played Non-English - $2.80
Heavily Played Non-English - $2.40
Damaged Non-English - $2.00