Viscous Symbiote (Legendary)

While unworn, this item appears as a puddle of viscous tar and bone shards. When you attune to this amorphous ooze, it slides up your arms, enhancing them with an extra-cutaneous layer of malleable, oily muscle. You gain 5 temporary hit points at the start of each of your turns.

Armhancements: While attuned to this item, whenever you make an ability check that uses Strength, you can treat a d20 roll of 7 or lower as an 8.

Malleable Skin: When you make a melee attack on your turn, your reach for it is 5 feet greater than normal.

Claws: Protruding from your tar-coated hands are long claws; natural weapons which you can use to make unarmed strikes. If you hit with them, you deal slashing damage equal to 2d4 + your Strength modifier instead of the bludgeoning damage normal for an unarmed strike.

Mask: This oily symbiote can react to danger, enhancing your senses. As a reaction when initiative is rolled, you can command the oil to cover your face for the next minute. For the duration, you have advantage on initiative checks and Dexterity saving throws, and gain blindsight out to 30 feet. After you activate this ability, you can't do so again until the following dawn.

Reactive Tentacles: Your symbiote protects you from incoming blows. Whenever you are the target of a melee attack by an attacker you can see within 10 feet of you, you can use your reaction to make a melee attack (+9 to hit) against that attacker immediately after its attack concludes. This attack deals 2d8 piercing damage on a hit.