Armor Class 13
Hit Points 27 (5d6 + 10)
Speed 25 ft., climb 25 ft.
Saving Throws DEX +5
Skills Athletics +2, Perception +4, Stealth +5, Survival +4
Damage Immunities poison
Condition Immunities poisoned
Senses passive Perception 14
Languages Grung
Challenge 1
Amphibious. The grung can breathe air and water.
Poisonous Skin. Any creature that grapples the grung or otherwise comes into direct contact with the grung's skin must succeed on a DC 12 Constitution saving throw or become poisoned for 1 minute. A poisoned creature no longer in direct contact with the grung can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Standing Leap. The grung's long jump is up to 25 feet and its high jump is up to 15 feet, with or without a running start.
Dagger. Melee or Ranged Weapon Attack: +5 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 5 (1d4 + 3) piercing damage, and the target must succeed on a DC 12 Constitution saving throw or take 5 (2d4) poison damage.
Shortbow. Ranged Weapon Attack: +5 to hit, range 80/320 ft., one target. Hit: 6 (1d6 + 3) piercing damage, and the target must succeed on a DC 12 Constitution saving throw or take 5 (2d4) poison damage.
Volo's Guide to Monsters, p. 157