Let me start building it step by step. Name: Companion of Darkness (Homebrew). Size: Medium. Type: Shadow (Monstrosity). Alignment: Neutral Evil. AC: 14 (natural armor). HP: Let's say 65 (10d8 + 30). Speed: 30 ft., and maybe climb 20 ft. if it's a shadow creature.
14 (natural armor) HP 65 (10d8 + 30) Speed 30 ft., climb 20 ft. Companion of Darkness -Ch. 9- By Berkili4
Wait, but the user specified it's from Chapter 9, so maybe it's part of a published module? If not, I should create an original stat block. Since the user is Berkili4, perhaps it's a homebrew creature. I'll proceed with creating an original one. Let me start building it step by step
Since it's a Companion of Darkness, maybe it's a summoned or shadow creature. Perhaps it's a familiar or a beast type. The name suggests a dark theme, so maybe it's a Shadow or a Monstrosity. Alignment could be neutral evil or lawful evil if it's a companion for a villain. Type: Shadow (Monstrosity)
Abilities: Str 14 (+2), Dex 16 (+3), Con 16 (+3), Int 7 (-2), Wis 10 (+0), Cha 8 (-1). Saving Throws: Dex +6, Con +6. Skills: Stealth +6, Perception +4. Damage Resistances: non-magical attacks. Maybe Vulnerable to radiant? Condition Immunities: frightened, charmed. Senses: Darkvision 60 ft., passive Perception 14. Languages: Understands Common but can't speak. Challenge 3 (700 XP).