Three-Headed Cobra 2014

CR 5 monstrosity

Large monstrosity, unaligned

Armor Class: 16 (natural armor)
Hit Points: 127 (15d10+45)
Speed: 40 ft., swim 30 ft.

STR14 (+2)

DEX18 (+4)

CON16 (+3)

INT4 (-3)

WIS10 (+0)

CHA6 (-2)

Saving Throws: Dexterity +7, Wisdom +3
Skills: Perception +3
Resistances: poison
Senses: blindsight 10 ft., passive Perception 13
Languages: -
Challenge: 5 (1,800 XP) · Proficiency Bonus +3

Reactive Heads.

The three-headed cobra gets two extra reactions that can be used only for opportunity attacks.

Three-Headed.

The cobra has advantage on Wisdom (Perception) checks and on saving throws against being blinded, charmed, deafened, frightened, stunned, and knocked unconscious.

Wakeful.

While the three-headed cobra sleeps, at least one of its heads is awake.

Actions

Multiattack.

The three-headed cobra makes three bite attacks.

Bite.

Melee Weapon Attack: +7 to hit, reach 15 ft., one target. Hit: 7 (1d6 + 4) piercing damage and the target must make a DC 15 Constitution saving throw, taking 7 (2d6) poison damage on a failed save, or half as much damage on a successful one.

Source: Creature Codex (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details