Troll Greens are a rare class of herbs, which tastes similar to basil. They can be found in a Dusalk's Troll Clan Cave located in the Green Claw Swamp and in the northeastern part of the main Necromancer cave in Drefia. It is located near the Black Sheep. You can see one in Meriana in Chondur's house. They can also be seen in quite a large quantity around the Paradox Tower.