When you cast this spell cast this spell, you must expend two hit die or else the spell fails. "X" is equal to the total hit die expended to cast this spell   You part some of your accursed life force upon another creature. An imbued creature gains the following effects;

• +X temporary hit points
• Resistance to necrotic damage
• Immune to being frightened
• Vulnerability to radiant damage

  An imbued creature can end all of these effects as a bonus action on their turn. When they do so, half of X + the amount of remaining time on the spell in minutes of necrotic damage is added to their next attack.