This is another of those cards that I think needs to be revisited with more recent synergies.
When Moira was released, she could draw an extra card every couple turns in single-player. This is still the case in Leadership and Aggression. However, Protection and Justice have some new tools to let you consistently go alter-ego practically every turn. These are Ready for a Fight and Entrapment. Both of which let you end your turn in alter-ego and change forms during the villain turn. Both of these are Preparations, letting you use Practiced Plan to reuse them, functionally giving you up to six copies.
While those cards are technically 2-ER, the fact you're ending your turn in alter-ego makes them functionally 1-ER (or zero in the case of Colossus or Psylocke since their alter-ego hand size is 2 more than their hero form.) If any X-Men or X-Force characters are using Ready For A Fight or Entrapment, Moira should be an auto-include. In those decks, she practically is just a much cheaper Avengers Mansion.