Silent Image

Create an image of an object, creature, or some visual phenomenon that is no larger than a 15 foot cube. Image is purely visual, and emits no sound. As an action you can move the image around. Physical interactions with the image reveals it to be an
illusion. A creature can use its action to examine the image to determine if it is an illusion with a successful Intelligence (Investigation) check against
your spell DC. If it succeeds it can see through the illusion.