3-level Necromancy
You briefly turn into a flurry of ravens, a dark mist, or similar foreboding phenomena before reappearing somewhere else in range. You teleport up to 60 feet to an unoccupied space you can see, forming a 10 foot wide line behind you. Creatures that you designate in the line must succeed on a Constitution saving throw or take 3d10 necrotic damage.
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.