Until I started playing on Templars, my understanding was that Empower only applied to one light attack. The "official" definition I found is "Increases damage of next light attack by 40%"
But, when I look at Templar's Solar Barrage, it reads differently: "While this ability is active you gain Empower, increasing the damage of your Light Attacks by 40%."
To me, this reads as getting a 40% buff to ALL light attacks while the ability is active (so about 10 seconds, I think?). Is that right? That is not in-line with what Empower is in any other cases, hence my confusion...