Homebrew Adolescent Behir Species Details

The serpentine behir crawls along floors and clambers up walls to reach its prey. Its lightning breath can incinerate most creatures, even as more powerful foes are constricted in its coils and eaten alive.

A behir’s monstrous form resembles a combination of centipede and crocodile. Its scaled hide ranges from ultramarine to deep blue in color, fading to pale blue on its underside.

Cavern Predators. Behirs lair in places inaccessible to other creatures, favoring locations where would-be intruders must make a harrowing climb to reach them. Deep pits, high caves in cliff walls, and caverns reached only by narrow, twisting tunnels are prime sites for a behir ambush. A behir’s dozen legs allow it to scramble through its lair site with ease. When not climbing, it moves even faster by folding its legs beside its body and slithering like a snake.

Behirs swallow their prey whole, after which they enter a period of dormancy while they digest. While dormant, a behir chooses a hiding place where intruders in its lair might overlook it.

Foes of the Dragons. In times long forgotten, giants and dragons engaged in seemingly endless war. Storm giants created the first behirs as weapons against the dragons, and behirs retain a natural hatred for dragonkind.

A behir never makes its lair in an area it knows to be inhabited by a dragon. If a dragon attempts to establish a lair within a few dozen miles of a behir’s lair, the behir is compelled to kill the dragon or drive it off. Only if the dragon proves too powerful to fight does a behir back down, seeking out a new lair site a great distance away.

Adolescent Behir Traits

The serpentine behir crawls along floors and clambers up walls to reach its prey. Its lightning breath can incinerate most creatures, even as more powerful foes are constricted in its coils and eaten alive. A behir’s monstrous form resembles a combination of centipede and crocodile. Its scaled hide ranges from ultramarine to deep blue in color, fading to pale blue on its underside.

Ability Score Increase

You gain +2 to constitution and +1 to strength.

Proficiencies

You gain proficiency in perception and stealth.

Damage Immunities

You are immune to lightning damage.

Darkvision

You gain darkvision in a 90 ft radius.

Languages

You know draconic and common.

Lightning Breath

The behir exhales a line of lightning that is 20 feet long and 5 feet wide. Each creature in that line must make a DC 15 Dexterity saving throw, taking 33 (6d10) lightning damage on a failed save, or half as much damage on a successful one. You suffer one level of exhaustion.

Bite

Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 22 (1d10 + 6) piercing damage.