000384 : Cannot have more than 2 inputs with the ArcGIS for Desktop Basic or Standard license.

Description

Union and Intersect will only accept two inputs with an ArcGIS for Desktop Basic or Standard license.

Solution

Consider using Union or Intersect multiple times to achieve your desired results. For instance, if there are three feature classes to be intersected, intersect the first two, and intersect the output with the third feature class.