You are both a humanoid and monstrosity.

Your size is Large.

Your base walking speed is 50 feet while not wearing Heavy armor. A rider causes a reduction in speed to 30 feet.

If you move at least 30 ft. toward a target and hit it with a melee weapon attack in the same turn, you can follow that attack with a bonus action, making one attack against that target with your claws on your lower forelegs. that target must succeed on a DC (8+PB+ Strength Modifier) Strength saving throw or be knocked prone.

You count as one size larger when determining your carrying capacity and the weight you can push or drag.

In addition, any climb that requires hands and feet is especially difficult for you because of your multitude of legs. When you make such a climb, each foot of movement costs you 3 extra feet instead of the normal 1 extra foot.

A Medium or smaller creature can ride on your feline back if you allow it. In such a situation, you continue to act independently, not as a controlled mount. Your Displacement feature also applies to the creature riding you.

You have two sets of forelegs on your lower body. The secondary forelegs can manipulate an object, open or close a door or container, pick up or set down a Tiny object, but you cannot wield any weapons or shields in these limbs unless it has the light property. Wielding objects in those paws will reduce your movement speed by 10 feet for as long as they are occupied as it becomes more difficult to move without the limbs free.

Your fey connection to nature gives you an intuitive connection to the natural world and the animals within it. You therefore have proficiency in one of the following skills of your choice: Animal Handling, Medicine, Nature, or Survival.

Accustomed to dark forests and the night sky, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.

You have natural weapons that do 1d4 + Strength Modifier slashing damage, You are proficient with these natural weapons.

You have natural weapons that are the 2 tendrils that come out of your body that do 1d6 + Strength Modifier slashing damage and 1d4 piercing damage. You are proficient with these natural weapons and they have the reach property.

The Displacer Taur projects a magical illusion with its tentacles that makes it appear to be standing near its actual location, causing attack rolls against it to have disadvantage. If it is hit by an attack, this trait is disrupted and ended. This trait is also disrupted while the Displacer Taur is incapacitated. You can use this feature a number of times equal to your proficiency bonus, and uses recharge on long rest.

Like the Displacer Beasts they originate from Displacer Taur are silent hunters. You gain proficiency in stealth.

You can use the Dash action as a bonus action.

As you lack the lower body of a humanoid, you are unable to wear humanoid armor below the belt (ex: leggings, greaves, or boots).
Due to the larger size of your lower half, any fall damage taken is doubled.
In addition if a creature of the same size or larger attempts to grapple you, you make the save with disadvantage.