Troll

The troll is a tall, skinny, green rubbery-skinned humanoid creature with a long nose and coarse greenish-black hair.

Encounters
The Troll is a monster where you will encounter during your first few fights in the dungeon. If you listen before you enter a room it is in, you will hear "grunts and a dragging noise" (probably the troll's club, if it has one)

Strategy
The Troll is a beginner monster and is very easy to kill, although harder to kill than a hobgoblin. It can regenerate health, (usually 2d6 health) as an action. If you try to charm it it would just laugh, so don't waste your time. Unlike trolls in Dungeons and Dragons, trolls are killable without using acid or fire to finish them off.