This plugin allows to add God Users capability, block the delete option and hide specific users on the users list. Only God Users can see other God Users or grant God capability to regular administrators.
The user who activates the plugin is the first God User. An Administrator with the God Capability can then add the capability to other regular Administrators through their user profile.
To prevent other users from deactivating and/or deleting the plugin by other users, use it as Must Use Plugin by moving the plugin directory into wp-content/mu-plugins. In that case don’t forget to create some Autoloader according to WordPress codex documentation or use some plugin e.g. CC-MU-Plugins-Loader to automatic load the plugin.