Water Breathing. The jellyfish can breathe only underwater.
Sting. Melee Weapon Attack: +5 to hit, reach 60ft, all targets in a line. Hit: 3-4-6 ( 1d4+2 ) poison damage. Target must make a Constitution Saving Throw (DC13) or be paralyzed for one round.
Distress. Automatic When a jellyfish is attacked, it produces a minute electric signal received by jellyfish anywhere within 120ft. These responding jellyfish will instantly start traveling toward the distressed jellyfish.
This invertebrate is characterised by its inverted bowl (or bell) shape, and its long flowing tentacles. They come in virtually all colours and are semi translucent. There are some jellyfish which have bold, non-translucent colouring in orange, yellow, pink, red, purple and blue. Jellyfish are strictly aquatic and cannot live more than 5 minutes out of water.
Oceans and deep salt water lakes.