Magic Variables mostly remove the need to manually save variables. They leverage Workflow’s Content Graph engine to automatically keep track of variables in the background, allowing you to access them at any time with the ability to change their type (format). It’s a novel idea, and it’ll take a few minutes to fully grasp, but it’s drastically superior to Workflow’s old variables. Magic Variables will change how you build workflows.
I started using the new Magic Variables this morning, trying to rework one of my older workflows. The one which I am in fact using to create this post. Thanks to the new system, I’m down to 6 steps instead of close to 20. There are two huge benefits: quicker workflow creation and much more readable workflows.