Vengeance Blast

A powerful blast of pure hate and sin that comes from the anger or hate of the user, dealing extra d4 damage to those who cause pain and suffering with no reason behind it (ask GM about if the creature caused said suffer on purpose for full use). Once spell is casted, the user of said spell will be dealt the same damage that was given out to the creature chosen and must make a constitution saving throw of 16. If user fails this throw, the spell will use up the rest of the players hit points instantly killing the user for good unless a revivify\resurrection spell is used. But if the user makes the save and lives, they will lose some of their max hit points and will have a disadvantage on constitution saving throws until effect if reversed by a higher-powered being.