Bullywug +

Amphibious. The bullywug can breathe air and water.

Speak with Frogs and Toads. The bullywug can communicate simple concepts to frogs and toads when it speaks in Bullywug, frogs and toads will answer to commands given to them in Bullywug. Bullywugs have advantage on Wisdom (Animal Handling) checks made on frogs and toads.

Swamp Camouflage. The bullywug has advantage on Dexterity (Stealth) checks made in swampy terrain.

Standing Leap. The bullywug's long jump is up to 20 feet and its high jump is up to 10 feet, with or without a running start.

Multiattack. The bullywug may make two attacks, one of which may be a bite.

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 1) piercing damage.

Frog. Ranged Weapon Attack: +7 to hit, range 10/45 ft., one target. Hit: 1 (1d4 - 1) bludgeoning damage.
The frog lands in an unoccupied space within 5ft of the target.
As a action or bonus action, a bullywug may make this attack if it is within 5ft of a frog, using the frog as ammunition, it may do this an infinite number of times as an action or bonus action is it is equipped with a bag of frogs.

 A bullywug may have 1 of the following weapons: club, spear, dagger, stone, shortbow or bag of frogs.

Club. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d4) bludgeoing damage.

Spear. Melee or Ranged Weapon Attack: +3 to hit, reach 5 ft. or range 15/40 ft., one target. Hit: 3 (1d6 - 1) piercing damage.
If a bullywug throws a spear, it cannot make a spear attack until it gets another spear.

Dagger. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d4) piercing damage.

Stone. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 9 (2d8) bludgeoing damage.
A bullywug with this weapon cannot swim or jump and walking speed is reduced to 15 ft..

Shortbow. Ranged Weapon Attack: +4 to hit, range 25/50 ft., one target. Hit: 4 (1d6) piercing damage.