Verbatim's Dance of Defenestration

"A spell once used to reposition inventory from one way or another, later implemented as a primary way of transporting goods. At least until someone walked up and thought to themselves... What about people?"

When you cast Verbatim's Dance of Defenestration, you touch a creature of your will within 5ft of you. The chosen creature makes a dexterity saving throw against your spellsave DC. 

On a failed save, you push this creature through an arcane gateway that ends up 20ft above you, causing that creature to plummet down, taking 1d10 points of force damage for every 10ft fallen. On a succesful save, nothing happens.

When upcasting this spell, the gateway ends up 10ft higher for every level you cast above 2nd level.