With the Mermaid out, does Polyjuice Potion copying an Ally still give its Attack or Influence?

Question

Accepted Answer

Unsettled. One experienced player's reading is that the copied effect belongs to the Hero who drank the potion, so the Mermaid does not block it. No official ruling covers it, and other readings are possible.

Harry Potter: Hogwarts Battle

With the Mermaid out, does Polyjuice Potion copying an Ally still give its Attack or Influence?