Also: Metallic sodium and potassium, as well as phosphorus, are quite reactive with human tissue. For bonus points you can make a mixed projectile with two transfigurations, e.g. a core transfigured from ice surrounded by a shell transfigured from sodium, which will explode once the two transfigurations end.
Also: Metallic sodium and potassium, as well as phosphorus, are quite reactive with human tissue. For bonus points you can make a mixed projectile with two transfigurations, e.g. a core transfigured from ice surrounded by a shell transfigured from sodium, which will explode once the two transfigurations end.