I've never written a retro-clone before, so how would I go about creating a Nephilim clone using GORE as the base? I'd introduce the new core attributes of Education (EDU), Family Relationship (FAM), and Social Status (SOC), and the use of Potentials for things other than poison. I'd be using the revised rules from Liber Ka, Chronicle of the Awakenings, and Slaying the Dragon (available on the Nephilim Ascendant Yahoo! Group), plus advanced past life generation, more historically-based summoning rules, converting the original spells into the new magic system, a new system for income, and a new system for contacts (credits to Liam Routt, Ramos-Tavener, and Josh).
What kind of changes would I have to make to things like fluff and terminology?
