An Advanced Creature Profile by Vincent Groth.     

The Diamond Troll stands eighteen feet tall. Diamond trolls are formed from large blocks of carbon personally compressed by Haltheris into diamond. Carved into a humanoid shape, and given life by a sliver of Haltheris’ heart. They can’t reproduce and can’t function outside of the horde. They are made of animated diamond, softer than real diamond but harder than flesh it has almost a consistency of living hardwood. They have real diamond spikes over their back and smaller diamond studs over their skin. They have small eyes with stoney brows and an armored cheek protecting their eyes from most threat. They have an elegance unknown to most trolls and move with grace. 

Diamond Trolls are extremely durable able to regenerate from injuries and their blood crystalizes into diamond spikes which they use to protect their bodies while their wounds vanish away. 

The Diamond Troll often exists a single or duo of feminine creatures that serve as the personal guard of Haltheris’ avatar and manifestations on the mortal coil. 

Diamond Trolls are near perfect creatures the only way to kill them is to penetrate their heart and if unpierced they shall rise once more. Their bodies are capable of shattering and once parted from connection to their heart they start to evaporate save for their diamond blood. Diamond Trolls can be wounded enough that their regeneration causes them to pass out as they lose blood. Their hearts are effectively indestructible however.