Please review the Microsoft Planner documentation. If you'll notice, there are not Copy or Move actions, but there are Get Bucket and Create Bucket actions, and List Tasks, Get Tasks and Create a Task actions.
So you could Get Bucket, Get Tasks and List Tasks then Create a Bucket using the parameters from the Get Bucket and and a Create a Task using the parameter from the Get Tasks steps.
A good starting point to familiarize yourself may be the Copy tasks from one bucket to another in Planner template.
If you could provide an expanded screenshot of your Flow and steps, and of any detailed error messages you're receiving we could likely better assist you. Also, for the best results, you may want to review How to write a good forum post.
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