Power Advancement in 2009

Season two episode Morality Bites led fan to believe Phoebe's third power was supposed to be electrokinesis o the ability to generate electricity. Although it has never been confimed it is often assumed that in that alternate future Phoebe shown in Morality Bites received the power of electrokinesis. However it is also theorized that the ability she used to kill Cal Greene with was actually an advancement of her empathy power, i.e. passing on harming emotions through the medium of electricity. This would explain why she snuck up on him and aimed for the brain rather...