Throw metal

upon casting this spell you must throw a metal object weighing up to 15lbs once you release the object it is propelled with magic in a straight line for 90ft

the target must roll a dex saving throw or take  1d10 damage (if the object is blunt then the damage is bludgeoning if it is sharp then it is piercing)

if the object is blunt and 10-15lbs then the creature must succeed on a str saving throw or be pushed back 3ft

at higher levels the spell does more damage 

3rd(2d10), 7th(3d10), 14(4d10)