They are both square areas. They look like polygons, but I stated that I drawn them like that to highlight the contradiction. Just imagine the blue area as a square and you are done.![]()
No, they aren't. A blast fills a square area. Your examples from the first post fit within a square area, but they do not fill it, because the caster's space is not affected by the blast. Ergo, they don't fill a square area, ergo they aren't blasts.