An arcana enhanced feat of strength allows the caster to throw an item (15lbs or below) which travels in a straight line and at a constant speed object only stops when caught or stopped by a 5ft thick wall.

1d100 to see how fast the object travels (feet per second)

if a wall is less than 5ft thick roll 1d20 if roll is higher than 15 the wall breaks (only at levels higher than a cantrip and only when the feet per second is higher than 20) . whith each foot thinner you take away 5 from how high you have to roll 

bludgeon/sharp (depending on what you throw) for each level 

+1d10 for each level spell slot used