Typhon's Misplaced Anvil

An anvil is summoned above the targets head before falling as their legs pinwheel trying to get away.

The anvils size depends on the size of your material component: the sacrificed material will summon a anvil 6x the # in lbs. For example: a coin about 15g will summon a 90 lbs anvil. 

To calculate damage add 1d4 for every 10 pounds the anvil weighs plus 1d10 for every 5 ft above the target. 

So a 50g piece of iron is used, summoning a 300lbs anvil 25 ft above some poor schmuck would be: (30d4 + 5d10)

To avoid the anvil you may make a DEX saving throw DC: 17 (- 1 for every 5 ft higher the anvil is) to leap out of the way.