I'd like to play a campaign as a raiding, slaving despot, but I need to make a decision whether to get the Barbaric Despoilers civic, or hold out for the ascension perk. Which path is better? From what I gather, the civic comes with diplomatic restrictions that the ascension perk does not. But on the other hand it seems like an extra ascension perk is more important than an extra civic. Do I have the pros and cons right? What are people's experiences who've made this choice in the past?