Hydaelyn

As a reaction to being attacked by a melee weapon, you unleash a flurry of aetherial needles in a 5ft. radius. Creatures in range must make a Dexterity saving throw, taking 1d10 piercing damage on a failure and half as much on a success. Those who fail are poisoned for one minute and cannot make attacks of opportunity. For every spell level cast at 2nd and above, increase the damage by 1d10 for every spell level cast above 1st.