The initial view of this card as being a two cost card for three thwart is somewhat misleading. It is effectively a passive failsafe that can simply stay on board if so desired. The fact that it is not a 'forced interrupt' is what allows for this excellent flexibility.
Peace of mind and the safer option of flipping down to alter-ego can also be valuable, especially with heroes such as Ms. Marvel that want to be in alter-ego form whenever possible.
This card also has value on account of deck-thinning; that alone can be somewhat worthwhile, even if this interrupt ability is not always used.
Overall, this is a card I often consider when designing a Justice deck for a hero who wants to be in alter-ego, and without having to bank on confuse status effects that more and more recent villains are resistant to by way of steady and stalwart.
A bit of an underrated card and one I am often glad I included in a deck to begin with.