Rakdos Riteknife [Dissension]

Set: Dissension Type: Artifact — Equipment Rare Cost: {2} Equipped creature gets +1/+0 for each blood counter on Rakdos Riteknife and has "{T}, Sacrifice a creature: Put a blood counter on Rakdos Riteknife." {B}{R}, Sacrifice Rakdos Riteknife: Target player sacrifices a permanent for each blood counter on Rakdos Riteknife. Equip {2}