Essence of theKiller

This essence looks like a bottle of blood and tastes coppery. By consuming it you become able to kill anyone.

• You have a body just above peak of your species in ability, one sculped to your tastes.

• You have supernatural mastery of many weapons and unarmed styles, even just plain old brawling.

• You are always armed with whatever weapons you prefer. Your weapons never become non-functional, be it through lack of ammunition, misfire, mechanical jam, rust, dirtiness, damage, or anything else.

• You can kill anything. Things which do not normally die of gross bodily injury do so when you inflict it.

• Things which do not have bodies for you to injure will, when you intend to kill them, develop weaknesses which you can intuitively notice and take advantage of.

• Your attacks have perfect defense penetration. Armor, supernaturally tough bodies, space-time anomalies and more cannot prevent you from hurting your targets.

• The damage you inflict cannot be healed, repaired, reversed, or otherwise ameliorated. Crippling injuries cannot be compensated for by prosthetics.

• Your attacks damage the body and the soul. You can strike immaterial creatures as though they were material. You can attack a hivemind by targeting any of the creatures making it up.

• Those you kill cease to exist. They will not leave ghosts or go on to afterlives and cannot be resurrected or raised from the dead. When you destroy an avatar, you can force that death to pass through its connection to its greater self and thus kill it. When you kill someone, you can destroy any data describing them well enough to make a clone or fork and prevent that data from ever being recovered, even by post-cognition or time travel.

• When you kill someone, their death will not leave any loose ends. Anything which depended on them will continue to exist, unaffected. Their allies will not seek revenge for their death. Their dead man's switches will fail to go off.

• Your ability to kill cannot be rendered irrelevant. This can grant you any power you need to still remain combat effective regardless of what's going on, but it doesn't go beyond keeping you combat effective.

• Your life is the story of you killing people, and any plot device necessary to give you an opportunity to kill those people is on the table.

• You can decide to kill or not in an instant, making the choice you would have if you had time to think it over with all the relevant information available to you. In this instant, you can form your killing intent.

• Your killing intent is a supernatural force which terrifies and suppresses your targets. Those afflicted by your killing intent feel like they are moving through molasses. Space and time around them are locked down, preventing them from fleeing by teleportation or time travel. Their ability to fight back is not wholly crippled, but they cannot avoid your attacks.

• Your killing intent requires you to intend to kill someone. There is some flexibility here: saying "If you stand in my way, I will kill you." does express your (conditional) killing intent, even if the person who was standing in your way backs down and you don't kill them. You can use this conditional killing intent to make your threats believable, provided you actually do intend to follow through and the threat involves killing someone.

• You can flavor your killing intent. A cold, utilitarian understanding that the world would be a better place without Voldemort in it will feel different to those around you than the burning rage at the man who just killed your wife. Your killing intent will feel protective to the people you are trying to save, even as it terrifies those threatening them.

• Your murder story surpasses and your killing intent suppresses the plot armor and destiny of your targets. They do not get a last-second power up or breakthrough. Their burning willpower will fade into ineffectual embers. Anyone who wishes to save them will fail to act in time.

• You can hide your killing intent. Although this prevents you from using it to lock down your targets, it does allow you to get close to them without them noticing that someone is trying to kill them.

• You are psychologically well suited to the life of a killer. Blood and gore don't make you squeamish, guilt does not make you miserable, and pity will not make you spare someone you decided to kill. You are immune to PTSD. Your bloodlust will never overwhelm your reason and morality.

• Here are some of the weirder points from the Essence of the Killer and some examples to show you what they're meant for.

• Your combat power cannot be rendered irrelevant.

• This is immunity to all the bitch-making bullshit involved in high-end combat. If you are blinded, you still know where your targets and obstacles are. If the Flash attacks you at a trillion times the speed of light, your perception and attacks will speed up to let you see him coming and shoot him dead. If someone mind-controls you, you'll get in a battle in the center of your mind, where you can kill the mind-controller and get free before anyone can take advantage of your distraction. If someone banishes you to a pocket dimension, you can still shoot out of it. This can grant you any power you need to still remain combat effective regardless of what's going on, but it doesn't go beyond keeping you combat effective.

• You always be given an opportunity to kill your target.

• This is basically making your life the story of you killing people. Any plot device necessary for you to kill someone is on the table. If you decide to kill Cthulhu, circumstances will align so that he's available for you to kill. Maybe he'll be summoned to your world where you can take a shot at him. Maybe you'll find an underwater river that leads from your world to R'lyeh, where you can kill your way into the castle and stab his sleeping body deader than dead. Maybe you'll find some of his blood and a ritual to use it to kill him. Whatever happens, his death will become possible.