1. Visual Composer – Visual Composer for WordPress is drag and drop frontend and backend page builder plugin that will save you tons of time working on the site content. You will be able to take full control over your WordPress site, build any layout you can imagine – no programming knowledge required. Moreover, now you can choose either work on a backend or move your page building process to frontend and instantly see changes you make.
2. WP Retina 2x This plugin ( Official Page )creates the image files required by the Retina (high-DPI) devices and displays them to your visitors accordingly. Your website will look beautiful and sharp on every device. The retina images will be generated for you automatically (you can also do it manually), served, and you will be able to control everything from the Retina Dashboard.
Parallax Backgrounds for VC: No longer needed because Visual Composer newest version support Video Parralax background
4. ThemeStudio Shortcodes – Contain Ariva Shortcode as Shortcodes are required to not include in to theme
5. ThemeStudio Post Types, Metaboxes – is a plugin to add new post type, taxonomy, metaboxes, shortcodes