Does the Mermaid block Attack or Influence from cards drawn by an Ally such as Flitwick, or from its house die roll?

Question

Accepted Answer

Cards an Ally lets you draw are not blocked, since their effects belong to the drawn card. The Mermaid still blocks the Influence Flitwick itself gives and the Attack or Influence from a house die roll.

Harry Potter: Hogwarts Battle

Does the Mermaid block Attack or Influence from cards drawn by an Ally such as Flitwick, or from its house die roll?