The nearly transparent gelatinous cube travels slowly along dungeon corridors and cave floors, absorbing carrion, creatures, and trash. Instinct: To consume

• Engulf - The cube moves over nearby target opponents, engulfing as many as it can cover and encasing them within its gelatinous insides.
• Transparent - Hard to see, even under ideal conditions, and creatures who fail to notice a cube and walk into it are automatically engulfed.

Bandits rove in gangs and are sometimes led by thugs, veterans, or spellcasters. Not all bandits are evil. Oppression, drought, disease, or famine can often drive otherwise honest folk to a life of banditry. Instinct: To steal

• Bombard - Fire at their prey in one large bombardment in an attempt to finish a fight quickly at the beginning of an encounter
• Lay trap - Will often lay traps in densely packed woods using tripwire, or stage an accident that requires an adventurers help before ambushing them whilst their back is turned.
• Calls for aid from its compatriots

Mimics are shapeshifting predators able to take on the form of inanimate objects to lure creatures to their doom. In dungeons, these cunning creatures most often take the form of doors and chests, having learned that such forms attract a steady stream of prey. Instinct: To feed

• Ingest - Swallows a target whole and causes it to take suffocation damage until it can escape through strength, or the mimic dies
• The Mimic disguises itself as an inanimate object and when touched can adhere to whatever touches it, causing it to get stuck and thus be easier to swallow
• Grows tentacles when discovered and can use them to pull in prey that tries to escape its maw

Feathers cover the thick, shaggy coat of its bear-like body, and the limpid pupils of its great round eyes stare furiously from its beaked owlish head. The owlbear’s reputation for ferocity, aggression, stubbornness, and sheer ill temper makes it one of the most feared predators of the wild. There is little, if anything, that a hungry owlbear fears, and these creatures are often hungry. Even monsters that outmatch an owlbear in size and strength avoid tangling with it, for this creature cares nothing about a foe’s superior strength as it attacks without provocation. Instinct: To eat

• Vicious Attack - The Owlbear makes two attacks, one with its beak and one with its claws

Goblins are small, squat creatures about 3 to 4 feet tall with pointed ears and equally pointy teeth. They have jet black hair and skin that varies from hues of orange to hues of green. They have beady black eyes and flat faces. Besides that, goblins are very numerous and varied creatures almost more than humans. Goblins live in loose clans ruled by a leader they refer to as a Mob Boss. Evil goblin societies frequently war against their neighbours, if not attempt to annoy them. Instinct: Collect shiny trinkets and amass wealth due to a vague knowledge that money = power

• Ambush their enemies from a tactical vantage
• Use natural poisons on their shoddily made arrows to increase their effectiveness when fired from shoddily made bows.
• Shrieks for help, calling the Goblin horde to its location

A skeletal warrior appears as a cracked and yellowing skeleton covered with shards of decaying flesh. Its eyes are black holes containing pinpoints of reddish light. It is clad in the blackened armor and rotted trappings it wore in its former life. Instinct: To destroy all life

• Bony grasp - The skeleton uses its vice-like skeletal hands to latch onto something living and start cutting into its flesh
• Bones must be scattered upon or after death or the creature will begin to reassemble