As Skrevoir swims and twirls about underwater, its flowing skirt creates a swirling vortex of poison that sucks in those nearby. Those pulled in and afflicted by the toxins find themselves drained of any and all hostility.
It apparently does not feel the pull of gravity because it supports itself with psychic power. Camouflaged as rotten kelp, they spray liquid poison on prey that approaches unawares and then finish it off.