In Path of Exile - How does the "Elemental Equilibrium" passive skill work?
For how long is the change in resistance applied to the enemy? How does it effectaffect enemies when you hit them with multiple elements at the same time (does? Does the penalty stack or stay at 50%)? Also in the case of multiple simultaneous elements simultaneously, which element is considered "first" to hit? Is "Chaos" damage considered elemental? Does it apply to spells as well as melee and ranged attacks?