SSE spell request - (elemental) Blast

[HellionBlade]

I'm interested in spells for the destruction school that behave like a shotgun blast. they would use a short length charge cast and do a very short range blast in a wide spread. these spells would be high damage and have some knockback and cost a decent amount of mana. not looking to send the enemies to space, just stagger or knock them to the ground. :)

Not sure if this is something that already exists besides shouts. looking for something that uses mana though. if it does already exist, please say so. :)