DiabloFans

Never mind, I just tested it myself and it is definitely multiplicitive.

By the way, I'm talking about for sentries. It may be different for other pets. I also found a source here that says it is multiplicative for sentries.

Does anyone have a reliable source for how the Tasker and Theo pet attack speed bonus interacts with regular character IAS?

For example, say my weapon has 1.00 attacks per second and I have 50% IAS on gear, as well as a 50% Tasker and Theo:



If the bonuses are multiplicitive: Pet attack speed = 1.00 * 1.5 * 1.5 = 2.25

If the bonuses are additive: Pet attack speed = 1.00 * (1+0.5+0.5) = 2.00



This is important to know for hitting attack speed breakpoints exactly.