IAS

IAS is an acronym for Increased Attack Speed. The attack speed on different weapons varies, for example axes have a higher attack speed than hammers but there are also many skills to increase attack speed. Warriors can use: Frenzy, "I Will Avenge You!", Berserker Stance, Dwarven Battle Stance, Flurry and Tiger Stance. Rangers can use Tiger's Fury and Bestial Fury. Tiger's Fury (Bestial Fury is the similar) is such an effective IAS skill that some Warriors take a Ranger secondary purely to take advantage of Tiger's Fury, despite having so many other possible skills to increase their attack speed. Attack speed cannot be increased beyond 33% of normal attack speed.