Q: Can Quake activate against a minion that is scheming for 0?

A: An enemy with 0 SCH still schemes if they activate while you are in alter-ego form. -(Developer Ruling, Hall of Heroes)

Quake punches above her weight. Her cost is excellent, and getting a 2 attack out of it if you so choose is strong. In decks that confuse the villain, Quake can be especially good as she can passively damage and kill remaining minions brave enough to still thwart. Given that most minions, generally, cannot scheme particularly well, it is often a worthwhile trade to take an extra scheme or two in exchange for the damage. Given that this is Justice, especially in solo an Under Surveillance and/or Counterintelligence can largely mitigate the dangers of having the main scheme completed while flipped down.

Overall, a high-value and cost-effective justice ally that can pile on the damage throughout a game.