Alchemical Form

You transform into an amoebic form composed of highly acidic and poisonous alchemical jelly. While in this form:
* you are immune to acid and poison damage and to the poisoned and stunned conditions;
* you have resistance to nonmagical fire, piercing, and slashing damage;
* you can’t speak, cast spells, use items or weapons, or manipulate objects;
* your gear melds into your body and reappears when the spell ends;
* you don't need to breathe;
* your speed is 20 feet;
* your size doesn’t change, but you can move through and between obstructions as if you were two size categories smaller; and
* you gain the following action: Melee Weapon Attack: spellcasting ability modifier + proficiency bonus to hit, range 5 ft., one target; Hit: 4d6 acid or poison damage (your choice), and the target must make a successful Constitution saving throw or be poisoned until the start of your next turn.