nittanytbone said:Agreed, it is just like taking a race with high LA, except the LA is being applied mid-campaign instead of at character creation.
Except that the examples (all based on starting characters) have starting xp based on the ECL (including LA as well as racial hit die).
From the FAQ
A succubus with four levels of wizard is an ECL 16 character (6 HD, LA +6, 4 class levels). How many experience points does she have, and how many does she need to become a 5th-level wizard? How much wealth should she have if I’m creating her as a new character to play?
Use your character’s Effective Character Level (ECL) to determine XP needed to gain a new level.
If you were creating a 4th-level succubus wizard from scratch, she’d have 120,000 XP (normal for a 16th-level character), and she’d need to earn another 16,000 to reach 17th level and take another level of wizard (or any other class), just like any other 16th-level character.
Assuming your campaign uses the normal wealth guidelines, your 4th-level succubus wizard should have about 260,000 gp worth of gear and treasure, as appropriate for being 16th level. After all, she’s likely adventuring with other 16th level characters, so it’s only fair for her to have a similar amount of gear.