Big Bang Attack

You shoot a big ball off energy in a 100ft straight line at any target in range, that target must make a DEX saving throw. On a fail the target takes 2d10+STR, is pushed 10 feet back, and is knocked prone. On a success the target takes half damage, is pushed back 5 feet and is not knocked prone. If there is something in the way of the attack, if it is stone or weaker it is destroyed.

You extend your hand forward with your palm bent in a 90 degree angle, you power up and charge a devastating blue energy sphere in your hand. Then you fire the energy sphere towards a designated target as you yell, "BIG BANG ATTACK!"