Arma d'acqua

As an action, you create a magic sword that deals water damage for one hour and is considered magical. Alternatively, you can surround your weapon with an aura of water, which deals damage of the previous element and water. If the weapon is not magical, it is considered magical for that time. This aura remains until you drop the weapon or fall unconscious, but it disappears one hour after invocation. For each additional level of the spell, you deal 1 d4 more water damage.