Invisible in Water. The wine weird is invisible while fully immersed in water.
Water Bound. The wine weird dies if it leaves the water to which it is bound or if that water is destroyed.
Constrict. Melee Weapon Attack: +5 to hit, reach 10 ft., one creature. Hit:13 (3d6 + 3) bludgeoning damage. If the target is Medium or smaller, it is grappled (escape DC 13) and pulled 5 feet toward the wine weird. Until this grapple ends, the target is restrained, the wine weird tries to drown it, and the wine weird can't constrict another target.