From Pre-Renewal

Creator are a much stronger class than the Alchemists, provided there are sufficient funds and SP for the new skill Acid Bomb (often abbreviated to "AB" or "AD" as it is known as Acid Demonstration on some other official servers.). While Alchemists were more of a melee class, Creator have the option to level with a skill other than Cart Revolution and Mammonite. Many invest a great amount of their stat points into INT instead of AGI, and level with Acid Bomb or magic attacks from weapons (i.e. Fire Bolt through the weapon Fireblend) and Homunculus instead.