Chodezilla

Amphibious. Chodezilla can breathe air and water.

Legendary Resistance (3/Day) If Chodezilla fails a saving throw, it can choose to succeed instead.

Gormless. Chodezilla has disadvantage on insight checks to detect deception.

Multiattack. Chodezilla can use its Goof-Ass Presence. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 6) piercing damage.

Claw. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage.

Belly Flop. Melee Weapon Attack: +11 to hit, reach 40 ft. wide, all targets. Hit: 15 (2d8 + 6) bludgeoning damage. Chodezilla is prone after this attack.

Goof-Ass Presence. Each creature of Chodezilla's choice that is within 120 feet of the him and aware of it must succeed on a DC 16 Wisdom saving throw or become incapacitated with laughter for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to Chodezilla's Goof-Ass Presence for the next 24 hours.

Breath Weapons (Recharge 5–6). Chodezilla uses one of the following breath weapons.

Ass Breath. Chodezilla exhales his nasty fish breath in a 60-foot line that is 5 feet wide. Each creature in that line must make a DC 18 Dexterity saving throw, taking 54 (12d8) poison damage on a failed save, or half as much damage on a successful one.

Slowing Breath. Chodezilla exhales gas in a 60-foot cone. Each creature in that area must succeed on a DC 18 Constitution saving throw. On a failed save, the creature can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In addition, the creature can use either an action or a bonus action on its turn, but not both. These effects last for 1 minute. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself with a successful save.

Chodezilla can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. He regains spent legendary actions at the start of its turn.

Detect. Chodezilla  makes a Wisdom (Perception) check.

Tail Attack. Chodezilla makes a tail attack.

Ass Clap (Costs 2 Actions). Chodezilla  beats its cheeks. Each creature within 10 feet of him must succeed on a DC 19 Dexterity saving throw or take 13 (2d6 + 6) bludgeoning damage and be knocked prone.