Conjure life force draining beam and fire to target you can see, the target must make DEX Save(spell save DC) taking 1d8 + 2 necrotic damage on failed save and half on successful save.

At Higher Levels : When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 + 2 for each slot level above 1st. You can upcast this spell using multiple spell slots, the combined level of the spell slots used can't be higher than your current highest level spell slot.