Arrow of Dusk

An arrow shaped shadow springs from your hand, draining vitality where it strikes. Succeed on a spell attack to deal 4d4 piercing damage. Crit x3. 5th lvl (4d6), 11th lvl (4d8), and 17th lvl (4d10). For every spell slot lvl 1+ that you consume to cast this ability, you gain 1 extra die. For example, if you’re 11th level and you want to cast this spell using a 4th level spell slot then you would add 4d8 to the damage, making the total damage 8d8.