Atavist

You are an anomaly: an eldritch abomination. Blood magic was the hint at a deeper, older, and alien piece that has become part of you. Likely, your robust physical body was a coveted host for eldritch forces, pairing a consciousness with your mighty vessel. Because of its influence, you pick up strange qualities, and can momentarily release the anomalies within you. You can also pick up weird quirks. You can roll or select on the table below.

At 6th level, the damage of your tentacles counts as magical for the purposes of overcoming resistances and immunities. Additionally, you can throw any number of creatures grappled by your tentacles as an action a number of feet equal to your speed in a horizontal direction. A creature must make a Dexterity saving throw or land prone and take 3d6 bludgeoning damage, which you can rend to the damage for all thrown creatures. If you would throw it into another creature, it must also make a Dexterity saving throw or taking the same damage.

Starting at 10th level, you can grapple creatures with your tentacles up to 30 feet away from you, and you can move creatures grappled by your tentacles up to 30 feet per turn, not including dragging them with you if you move.

Beginning at 18th level, you can devour the soul of a creature that dies while grappled by at least one of your tentacles. If you do so, for the duration of the current anomaly, you gain one additional tentacle, you can change your face into the creature's or back to your previous as an action, and you know everything that creature knew in life.

Your color of atavist is one who thrives on a wounded physique, gaining adrenaline and power from being closer to death. These atavists tend towards extreme masochism, and are sometimes only truly happy when they can feel cuts, bruises, and blood pumping from their body alarmingly.

At 6th level, you and friendly creatures within 10 feet of you add your Constitution modifier to their weapon damage rolls when you are below half your hitpoint maximum.

At 18th level, the range of this aura increases to 30 feet.

At 10th level, you have advantage on one weapon attack roll per turn if you are below half your hitpoint maximum (rounded up).

Starting at 18th level, when you are reduced to 0 hitpoints or killed, you can drop to 1 hitpoint instead. If you do, you enter a fury against death for 1 minute. While in a fury against death, your attack rolls, saving throws, and ability checks treat a d20 roll of 9 or lower as a 10, you can't be hit by attacks except for critical hits, and when you are subjected to an effect that allows you to make a saving throw to take only half damage, you instead take no damage if you succeed on the saving throw. When your fury against death ends, you gain four levels of exhaustion.

Atavists use their bodies in ways far beyond the normal capacity of any other creatures. Certain atavists follow their blood, gaining physical command of it—shaping and wielding it inside and outside of their bodies, as well as in the bodies of others.

Starting at 6th level, when you kill a creature with a weapon of blood, you can roll one of its Hit Dice + its Constitution modifier, gaining hitpoints equal to the result.

You can use this feature twice, regaining all expended uses when you finish a short or long rest.

At 10th level, you can refute many attacks on your body. When you are subjected to an effect that allows you to make a Constitution saving throw to take only half damage, you instead take no damage if you succeed on the saving throw, and only half damage if you fail.

Beginning at 18th level, you are capable of creating a blood weapon that rivals the most powerful weapons in the multiverse. By creating a weapon of blood, you can create an artifact of blood instead. You rend for 20d6, instead of the normal amount. It looks how you wish. After three hits with the artifact of blood, it falls apart.

Once you use this feature, you can't use it again until you finish a long rest.

In certain cultures, manipulation of one's blood for magic can be seen as the influence of hellish forces, outright feared as being caused by a demon. They might be wrong or, occasionally, may be very right. Whether some shard of a demon's soul awakens hemomancy within you, you've made a pact of power, an old fiendish blood god occupies a forgotten line of your family tree, or you've been cursed by a godless soul, you have a demonic aspect about you.

At 6th level, when you rend while in a demon's pyre, you can change the weapon damage dealt to fire damage. Additionally, any fire damage you deal ignores resistances, and you have resistance to fire damage.

At 10th level, when one or more creatures take fire damage from your demon's pyre, you can expend one spell slot to deal additional fire damage to them. The extra damage is 2d4 for a 1st-level slot, plus 1d4 for each spell level higher than 1st, to a maximum of 5d4. A celestial or fiend creature takes an additional 2d4 damage.

At 18th level, when you enter a demon's pyre, you can also enter an avatar of a demon prince. If you do so, for the duration of the pyre, you gain the following benefits:

Once you enter an avatar, you can't do so again until you finish a long rest.

The ancient powers of Atavism are not immune to the influences of the Outer Planes, and occasionally, whether by chance or design, the two combine in a unique way. Heavenly atavists are an example of this, persons touched by the goodly nature of one of the Upper Planes. Infused with celestial power, these self-sure individuals possess the unique ability to tap into their health to aid others, guiding the strikes of their allies and leading them to glorious victory.

At 6th level, your allies can shoulder the stress of rending, lessening the toll it takes on your body, and you can ward them from harm in turn—at a cost. Whenever you use your Angelic Guidance feature, the ally you rend for can choose to take the rend damage instead of you. Additionally, whenever an ally within 30 feet that you can see takes damage, you can use your reaction and rend to reduce the damage by the amount rolled.

At 10th level, you take on some aspects of an Angel, the divine denizens of the Upper Planes. Once per round, you can deal an extra 1d8 radiant damage when you hit a creature with a melee or thrown weapon, and you can cast detect evil and good at will, without expending a spell slot.

At 18th level, you can sacrifice tremendous vitality to sound a divine call to arms, summoning a celestial champion to your side. As an action, you can rend yourself by rolling a number of d6s equal to your level, causing a Justice Archon to appear in an unoccupied space within 10 feet of you. The Justice Archon has the same statistics as a Deva (MM 16), but lacks the Healing Touch action and wields a longsword. The Justice Archon is friendly to you and your companions and will fight for you, acting on your initiative and following your verbal commands. The Justice Archon remains for 10 minutes, or until you act in a manner that offends or displeases it, at which time it returns to the Upper Planes.

Once you've used this feature, you can't use it again until you finish a long rest.

Murderous atavists are honed on the hunt: they use their power to deplete and destroy others. They attack strategically weak spots in a creature, taking them down in stride. Their motivations for this are more varied than the monsters and people they kill: money, fame, altruism, addiction, blackmail, divine, profane, insanity, vengeance, thrill seeking, political gain, or any other inscrutable motivations; perhaps some don't have or need a reason.

Starting at 6th level, you become highly effective at tracking and eluding enemies. You gain proficiency in the Stealth and Survival skills, and for one of those skills of your choice, you double your proficiency bonus for any ability checks made with that skill. Finally, you can take the Dash, Hide, and Search actions as a bonus action.

At 10th level, you can rend yourself to an attack roll. You can use this feature a number of times equal to your Constitution modifier, and regain all expended uses when you finish a long rest.

Additionally, when you rend to an attack roll, you can use your Lethal Strike feature even if you don't meet the prerequisites.

Beginning at 18th level, you can match a life form's health in a brazen contest of power. When you score a critical hit on a creature, you can trade blood for blood. The creature with less hitpoints remaining falls to 0 hitpoints and the creature with more loses an equal amount.

Once you use this feature, you can't use it again until you finish a long rest.