The Emperor's Wrath, Lord (now Darth) Ravene
(not sure if I'll canonically pronounce it like "Raven" or "Rah-VENN")
The way you've spelt it, you ought to be pronouncing it "Raveen." That letter on the end is what they called the "magic E" when I was in primary school, as it changes the vowel sound of the syllable.
But then again, it's your made-up name, it's up to you how to pronounce it.