Goblin Goo Hexmallow

Marshmallow Magic This marshmallow has a really strong zesty lime flavor that lingers in the mouth long after consuming the marshmallow. It has a vibrant, swirling green and yellow appearance that seems to shift over time.
  You can use a bonus action to eat this marshmallow, when you do, you gain resistance to Acid damage for the next 10 minutes. However, for the duration you also become vulnerable to weapon damage. Roll a d4 to determine the type(s) of damage you become vulnerable to. For the duration, you cannot gain the benefits of any other hexmallow.     Goblin Goo Vulnerabilities

d4	Damage Type
1	Bludgeoning, Piercing and Slashing
2	Bludgeoning
3	Piercing
4	Slashing