The official GemStone IV encyclopedia.
Rangers are semi class that focus on nature. A ranger is a jack of all trades, having skill costs that allow a character to excel at almost any endeavor whether they be physically or magically focused although not all at one time. They can be described as less physical than paladins and less magical than bards, putting them squarely in the middle of the semi class. Rangers can be compared to rogues in hunting style, but relying more on magic to set up an ambush rather than combat maneuvers. Rangers often use a hidden ambush style, using any style of weapon other than polearm. Archery is one of the most popular ranger styles with several variants.
The ranger spell circle is by far one of the most versatile in the game, ranging from highly focused combat spells to practical utility spells, all of which foster a general roleplay idea. The pinnacle of these spells is Animal Companion which is unique in its class, providing combat, utility, and RP functions that last for the entirety of the character's existence.