Throwing Scarab

Bred by the daelkyr Valaara, this bizarre symbiont burrows into the palm of its host, secreting razor-sharp chitin blades that can also be used as throwing weapons. When you attune to the scarab, it fuses with one of your hands, visible only as an iridescent, chitinous growth on your palm. For every attack you make as part of the Attack action on your turn, you can extrude a shard of razor-sharp chitin from the symbiont into your empty hand, using it for the attack. The shard counts as a magical simple melee weapon with which you are proficient. It has the finesse, light, and thrown properties (range 20/60), and deals 1d4 points of piercing damage and 1d4 points of acid damage on a hit. The shard dissolves as soon as it hits or misses its target.

Symbiotic Nature. The scarab can't be removed from you while you're attuned to it, and you can't voluntarily end your attunement to it. If you're targeted by a spell that ends a curse, your attunement to the scarab ends, and you can remove it.