Dripstone Spikefall

You conjure a spectral dripstone spike above a creature within range, which falls down to impale it. If there is already a piercing object, such as a stalagmite, above that creature already, you can cause it to fall instead, and when you do so, this spell deals an extra 2d10 damage on a a hit.Make a ranged spell attack against that creature. On a hit, it takes 4d10 piercing damage. In addition, this spell rolls a crit on a roll of 19-20.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the spike deals 1d10 extra piercing damage for each spell slot level above 2nd.