Bill's Magical Train

A Blue Ring forms with a Ghostly Train Coming out of it as Bill the Train Conductor screams: "CHOOOOO! CHOOOOO!". The Train will continue in a line  before entering another Blue Ring and Disappearing. The Train takes up 10ft of Width Traveling for 25ft and then disappearing. Anyone in the Path of the Train must make a Dex Saving Throw. If succeded, The Target moves to the closest Unoccupied Space. On a Failure, A Target target Takes 8D6 of Force DMG and becomes Prone.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage (both initial and later) increases by 1D6 for each spell slot Higher above 5th