Living in dark forests and caves, Centipedians have evolved the capability to sense vibrations though their legs. You have Tremorsense up to 60ft.

As a centipede-like creature you possess a tough natural shell along most parts of your body, your AC is 14 + your Dexterity modifier, when not wearing an armor.

Thanks to your antennae you have a powerful sense of smell. You gain advantage whenever you make a Perception check that relies on smell. Additionally when tracking a creature you can tell how long it's been since it passed through where you are and which direction it went.

Your Centipede-like body gives you a protection against certain types of damage but weaknesses against others. You have resistance to Piercing and Slashing damage, but you are weak to Fire damage.

Additionally, because of your long body and numerous legs trailing behind your humanoid upper body, creatures walking behind you find it difficult to move. 15ft behind your upper body count as difficult terrain.

You possess a hollow claw on each hand capable of injecting a powerful venom. Whenever you make an unarmed strike and hit the target, you deal 2 + your Strength modifier piercing damage + 1d4 Poison damage. The target must also make a Constitution saving throw. On a fail it's poisoned for 1 minute.

Several pairs of legs allow Centipedians to climb on any hard surface with ease, while keeping their hands free. Additionally, when in a cave, you are capable of walking on the cave ceiling without falling. Your climbing speed is 20ft.

The numerous legs also stabilize your balance and you can't be knocked prone.

Your Constitution score increases by 2.