This addon allows you to create your own PlaceholderAPI placeholders, which can be used in any plugin that supports it. You are also able to use PlaceholderAPI and MVdW placeholders within your scripts.
It is a fork of Ersatz which has been updated to work with the newer versions of PlaceholderAPI.
Information, downloads, and documentation are available on GitHub: https://github.com/APickledWalrus/skript-placeholders
If you encounter any issues or have any questions, feel free to message me here or on GitHub (note: I will most likely respond faster on GitHub).
There is a lot more syntax and documentation than Ersatz originally had. Due to this, documentation is now being hosted on the addon's GitHub Wiki.