[Block Type] Image Hero Block
The Hero Image Block allows for a single image to display with text overlay. To set the text, edit the image and edit the properties on the Hero tab.
To position the text, set the property "Text Overlay Style" to be across the bottom of the image, or use the position set on the image itself.
Below are 2 Hero Image Block display the same image. One is set to use the positioning set on the image, the other is set to display the overlay across the bottom: