5x Beast Blood

Curse of the Beast
At 1st level, an event in your life has left you cursed by a primordial evil that causes you to transform into a terrible beast. After years of training, you can exert some control over this curse. As a bonus action, you can transform into a werebeast. While transformed, you gain the following effects; You remain transformed for 1 minute, or until you fall unconscious or are killed. You can also end your transformation early using your bonus action. You can use this feature a number of times equal to your proficiency bonus, and you regain any expended uses when you finish a long rest.
 * You have advantage on Strength checks and Strength saving throws.
 * Your mouth transforms into a bestial muzzle or great mandibles (your choice). It deals 1d8 piercing damage on a hit. If you are bloodied, you regain a number of hit points equal to your proficiency bonus when you deal damage with this Attack. You can regain hit points from this Attack once per turn.
 * Each of your hands transforms into a claw, which you can use as a weapon if it’s empty. It deals 1d6 slashing damage on a hit. Once on each of your turns when you Attack with a claw, you can make one additional Attack using the same claw as part of the same action.
 * You grow a lashing, spiny tail, which deals 1d8 piercing damage on a hit and has the reach property. If a creature you can see within 10 feet of you hits you with an Attack roll, you can use your Reaction to swipe your tail and roll a d4, applying a bonus to your Armour Class equal to the number rolled, potentially causing the Attack to miss you.
 * You know the exact location of any bloodied creature within 30 feet of you, as long as you can smell.
 * If you can cast spells, you cannot cast them or concentrate on them.

If you score a critical hit with your natural weapons, the target bleeds for 1d10 turns.

Additionally, you can use this feature even if you have no uses of it remaining. When you do this, you roll a d20 after transforming. On a roll of 10 or less, you lose your mind to the overwhelming power of your cursed blood and go berserk. While berserk, you must spend each of your turns trying to kill the closest creature to you, and you can roll a d20 at the end of each of your turns. On a roll of 16 or higher, your transformation ends early and you are no longer berserk. While you are not in control of yourself when you are berserk, you remember everything that happened when the transformation ends. When your berserk transformation ends, you gain one level of exhaustion.

Adaptive Form
At 3rd level, you can change your form to help you adapt to your surroundings. When you finish a short rest or a long rest, you can choose one of the following benefits. This benefit lasts until you finish a short or long rest.
 * You gain a swimming speed equal to your walking speed, and you can hold your breath for 10 minutes.
 * You gain a climbing speed equal to your walking speed, and you can climb on difficult surfaces, such as upside down on ceilings, without needing to make a check.
 * Your jumping distance is increased by 5 feet in all directions.

Cursed Soul
At 6th level, the monstrous power within you increases, causing the natural weapons of your Curse of the Beast feature to count as magical for the purpose of overcoming resistance and immunity to non-magical attacks and damage.

Giant Beast
At 9th level, you can choose to use expend two uses of your Curse of the Beast feature to increase your size by one category (for example, if you are Medium size you become Large). While your size is increased, you gain the following benefits;
 * Your walking speed is increased by 10 feet (including any climbing or swimming speed gained from your Adaptive Form feature).
 * You take only 1 damage from non-magical bludgeoning, piercing, and slashing damage.
 * Your muzzle or mandibles deal 1d10 damage, instead of 1d8 damage.
 * Your claws deal 1d8 damage, instead of 1d6 damage.
 * Your tail deals 1d10 damage, instead of 1d8 damage.

Wild Hunt
At 13th level, when you transform into a werebeast using your Curse of the Beast feature, you gain temporary hit points equal to your character level. Additionally, you can use the Dash action as part of the bonus action used to transform into a werebeast.

Endless Curse
At 17th level, you gain the following effects when you transform into a werebeast.
 * You have resistance to all damage, except psychic damage.
 * If you are reduced to 0 hit points but not outright killed, you are reduced to 1 hit point instead. When this happens, your transformation immediately ends and you gain one level of exhaustion. This can only happen once per long rest.