Giant, Hellfire 2014
CR 9 giant
Huge giant, neutral good
When it dies the runes on its body flash a bright green then turn to mundane malachite. Each creature within 20' of giant: cursed 7 days (DC 16 Con negates) or until lifted by remove curse spell or similar. While cursed creature has disadvantage on saves and on first attack roll it makes on each of its turns. Fiends have disadvantage on the save.
Its weapon attacks are magical. When it hits with any weapon weapon deals extra 2d8 fire (included in below).
Advantage on Dex (Stealth) checks made to hide in rocky terrain.
Reactions
Adds 4 to its AC vs. one attack that would hit it as green runes encircle the giant. To do so giant must see the attacker and can't be invisible
Source: Tome of Beasts 3 (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details