Erina

Keen Smell. The erina has advantage on Wisdom (Perception) checks that rely on smell.

Hardy. The erina has advantage on saving throws against poison.

Spines. A creature that touches the erina or hits it with a melee attack while within 5 feet of it takes 2 (1d4) piercing damage. In addition, a creature grappled by or grappling the erina takes 2 (1d4) piercing damage at the start of the erina's turn.

Dagger. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d4 + 1) slashing damage.

Sling. Ranged Weapon Attack: +3 to hit, range 30/120 ft., one target. Hit: 3 (1d4 + 1) bludgeoning damage.