Carian Piercer

You conjure a magic greatsword and thrust it forward. Make a melee spell attack roll against one creature within 10 feet of you. On a hit, the target takes 4d10 + your spellcasting ability modifier piercing damage. If it is riding another creature, the target is knocked prone.
At Higher Levels.
When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d10 for each slot level above 3rd.