Unstable Form

Your form twists and shifts as you take on a writhing, gnarled form of unstable flesh and tentacles. You can immediately make a melee spell attack against a creature of your choice within 15 ft. On hit, the target takes 1d10 necrotic damage and you can move in a mass of undulating flesh up to half your movement, this movement does not provoke opportunity attacks. You can use your action on each subsequent turn to make another melee spell attack against a creature within 15 ft of you.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage you deal increases by 1d10 for each slot level above 1st.