Bite of the Spider Queen

You stretch out both hands and show your teeth and a beam of red translucent light will shoot out in the shape of a spider the same size as the caster at your foe and appear to bite the torso of the desired target.

If the spell is successful, the target takes 1d6+4 poison damage. 

On their turn after being poisoned, the target must make a saving throw (10+) in order for the poison to subside.  If the target fails the save, they take 1d4 poison damage rolled by the spell-caster.