Monsters

A monster's type speaks to its fundamental nature. Certain spells, magic items, class features, and other effects in the game interact in special ways with creatures of a specific type.

Type
Aberrations are alien beings. Many of them have innate magical abilities drawn from the creature's alien mind rather than the mystical forces of the world. The quintessential aberrations are Aboleths, Beholders, Mind Flayers, and Slaadi.

Beasts are non humanoid creatures that are a natural part of the fantasy ecology. Some of them have magical powers, but most are unintelligent and lack any society or language. Beasts include all varieties of ordinary animals, dinosaurs, and giant versions of animals.

Celestials are creatures native to the Upper Planes. Many of them are the servants of deities, employed as messengers or agents in the mortal realm and throughout the planes. Celestials are good by nature, so the exceptional celestial who strays from a good alignment is a horrifying rarity. Celestials include Angels, Couatls and Pegasi.

Constructs are made, not born. Some are programmed by their creators to follow a simple set of instructions, while others are imbued with sentience and capable of independent thought. Golems are the iconic constructs.

Dragons are large reptilian creatures of ancient origin and tremendous power. True dragons are highly intelligent and have innate magic. Also in this category are creatures distantly related to true dragons, but less powerful, less intelligent, and less magical, such as Wverns and Peudodragons.

Elementals are creatures native to the elemental planes. Some creatures of this type are little more than animate masses of their respective elements. Others have biological forms infused with elemental energy. The races of Genies, including Djinn and Efreet, form the most important civilisations on the elemental planes. Other elemental creatures include Azers, Invisible Stalkers and Water Weirds.

Fey are magical creatures closely tied to the forces of nature. They dwell in twilight groves and misty forests. In some worlds, they are closely tied to the Feywild. Some are also found in the Outer Planes. Fey include Dryads, Pixies and Satyrs.

Fiends are creatures of wickedness that are native to the Lower Planes. A few are the servants of deities, but many more labour under the leadership of Archdevils and Demon Princes. Evil priests and mages sometimes summon fiends to the material world to do their bidding. If an evil celestial is a rarity, a good fiend is almost inconceivable. Fiends include Demons, Devils, Hell Hounds, Rakshasas and Yugoloths.

Giants tower over humans and their kind. They are humanlike in shape, though some have multiple heads or deformities. The six varieties of true giant are Hill Giants, Stone Giants, Frost Giants, Fire Giants, Cloud Giants, and Storm Giants.

Humanoids are the main peoples of the D&D world

Hit Points
by level by country

Supernatural

undead

Wil of Wisps

Ammon desert worms

Mysidian Monsters

Giant blood sucking leeches

Drop Bears (Thylarctos plummetus) - large and vicious marsupials that inhabit treetops and attack unsuspecting people (or other prey) that walk beneath them by dropping onto their heads from above.

Actual Cannibal Shia LaBeouf