Aqua Goblin Chieftain

Amphibious. The Aqua Goblin can breathe air and water.

Slippery. The Aqua Goblin has advantage on ability checks and saving throws made to escape a grapple.

Rusty Weapon. When an Aqua Goblin Chieftain damages a creature with his weapons, that creature must succeed in a DC 12 Constitution Saving throw or be poisoned until the end of their next turn.

Pack Tactics. The Aqua Goblin Chieftain has advantage on an attack roll against a creature if at least one of the Aqua Goblin’s allies is within 5 feet of the creature and the ally isn't incapacitated.

Multiattack. The Aqua Goblin Chieftain makes two attacks, one with his short spear and one with his shortsword or net.

Short Spear. Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d6 + 1) piercing damage, or 5 (1d8 + 1) piercing damage if used with two hands to make a melee attack.

Shortsword Melee Weapon Attack: +4 to hit, reach 5 ft.., one target. Hit: 4 (1d6 + 1) piercing damage.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 1) piercing damage, and the target must succeed in a DC 12 Strength Saving throw or be grappled.

Net. Ranged Weapon Attack: +4 to hit, range 5/15 ft., one Large or smaller creature. Hit: The target is restrained. A creature can use its action to make a DC 10 Strength check to free itself or another creature in a net, ending the effect on a success. Dealing 5 slashing damage to the net (AC 10) frees the target without harming it and destroys the net.