Does anyone know exactly how specialization works? I've heard that if you have 200 specialization in something then 20% of the time you cast a spell in that specialization it will cost half the normal mana. If you have 100 specialization 10% of the time it would be half the mana cost. 50=5% of the time, etc.
Also, by getting all the specialization mastery aa's would that increase the chance of halving the mana cost to 20%+30%=50% meaning half of the time? Or would it be like 20%*30%=26%, a quarter of the time?
Has anyone tested this or know how it works? Thanks.