When a creature you can see within 30 feet of you makes an attack roll, you can use your reaction to roll one hemocraft die and subtract the number rolled from the creature’s attack roll. You can choose to use this feature after the creature’s roll, but before the DM determines whether the attack roll succeeds. The creature is immune if it is immune to blindness.
Amplify. You apply this curse to all of the creature’s attack rolls until the end of the turn. You roll a new hemocraft die for each affected attack.