Blimp

False Appearance. While the blimp remains motionless, it is indistinguishable from an ordinary balloon.
Pop. The blimp explodes when it drops to 0 hit points. When it does so, it causes one of the following effects of its choice.

• Laughing Gas. Each enemy creature within 20 feet of the blimp when it explodes must succeed on a DC 14 Wisdom saving throw or begin laughing uncontrollably. An affected creature cannot take bonus actions or reactions and must succeed on a DC 14 Constitution ability check to take actions that involve speaking (such as when casting a spell with a verbal component). An affected creature can attempt a DC 14 Wisdom saving throw at the end of each of its turns, ending the effect for itself on a success.
• Party Slime. Each creature within 20 feet of the blimp when it explodes must succeed on a DC 14 Dexterity saving throw or be coated in a fluorescent slime. A creature that fails the save takes 7 (2d6) damage at the start of each of its turns. The type of damage is determined by the color of the blimp, as detailed below. A creature can remove slime from itself or another creature within 5 feet of it by taking an action to wipe it off. The slime can also be removed by completely immersing the affected creature in water or another similar liquid.
  • Red: Fire
  • Orange: Acid
  • Yellow: Lightning
  • Green: Poison
  • Blue: Cold
  • Indigo: Necrotic
  • Violet: Force
    

Servant of Heckna. The blimp follows any commands given to it in Gobbledygook.

Entangle. Melee Spell Attack: +0 to hit, reach 15 ft., one creature. Hit: the target is grappled (escape DC 12). While the blimp is grappling a target in this manner, it ascends 20 feet straight upward at the end of each of its turns, dragging its grappled target with it into the air.
Detonate. The blimp dies, and the radius of the area affected by its Pop trait is doubled.