How to get succubus in new versions
The gossip girl in the casino sells many "secrets" for height. You need to sacrifice some height to her to unlock being able to access the island at the pier during night time if I remember correctly. Be warned however there will be a savage series of fights you'll have to win that will make Valeria look easy. If you can defeat the general suppressing the succubuses despite her chance to unleash absolutely MASSIVE damage then the deck theme will be unlocked in the standard shop.