Crimson slash

Choose a vein within your body or one of a differents creature within 5 feet of you, that has blood flowing through it. Puncture the vein, and douse your hands in the blood. Following a motion of your choice, the blood flies in a straight line up to 90 feet in a direction you choose before falling to the ground, stopping early if it impacts against a solid surface. The blood will have, upon being expelled, a curved shape. The area of effect this spell has, goes along the line the blood travels through, with a width of 15 feet across. If the object would strike a creature, that creature must make a Dexterity or a Strength saving throw. On a failed save, the blood strikes the target and stops moving. When the blood strikes something, that what it strikes will take 3d8 slicing damage. 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the maximum volume of blood that you can target with this spell increases by 0.5L, and the damage increases by 1d8, for each slot level above 1st.