Blood Pike

You create a pike out of the blood of a deceased being. Choose the body of one non-construct, non-undead creature that has died within the last 10 minutes. You must be able to see the body, it must be within 60-feet of you, and the creature to which the body belongs must have a size of small or larger. You cannot choose the same body as the target of this spell more than once.

You siphon the blood from the chosen creature to manifest a magical pike in your hands. It counts as a martial melee weapon with which you are proficient. It deals 1d10 piercing damage on a hit and it has the reach and two-handed properties. In addition, if a creature is hit by this weapon, they must make a Constitution saving throw. On a failed save, the creature takes an additional 3d8 necrotic damage and is poisoned until the beginning of your next turn, or half as much damage on a successful one and isn't poisoned.

If you ever let go of the weapon, it dissipates at the end of the turn.

At Higher Levels. When you cast this spell using a 4th- or 5th-level spell slot, the necrotic damage increases to 4d8. When you cast it using a 6th- or 7th-level spell slot, the necrotic damage increases to 5d8. When you cast it using a 8th- or 9th-level spell slot, the necrotic damage increases to 6d8.