Q: Can you use Ms. Marvel's Shrink to increase the threat removed beyond 5?

A: Shrink modifies the amount of threat “that event removes” so the maximum of 5 applies. -(Developer Ruling, Hall of Heroes)

This is a fine card for the right kind of hero, one of the few really effective Aggression cards for removing threat.

This card can feel somewhat disappointing because it is rather situational, a lot of the time you are in alter ego mode or you are avoiding damage or just not taking that much damage or you have other things to do, and it just sits in your hand unused. Luckily, the great thing about Marvel Champions is that useless cards in your hand aren't useless, they can be used as resources to pay for other cards. It is OK that most of the time this card is being used to pay for other cards, in return for sometimes letting you remove an impressive four or five threat for a measly two effective resources.

The important determination on whether your hero would want to include this card, is that you want to use it on a hero who normally takes big hits from the villain and heals from them, someone like She-Hulk. If you are a fragile hero who plans on doing everything you possibly can to avoid taking big hits by the villain, you don't really want to take this card.