During a game, at the bottom of the screen, you can select to add a "stop" during various turn phases to create the illusion that you have a card to play in response
The biggest problem with it is being in both white and blue really restricts the amount of decks it can go in, and since you're in blue you likely have better draw engines
That hasn't stopped its popularity in Commander from driving the price of the surge foil up to $16
That suggests computer scientists need to rethink their ideas about games, particularly if they hope to produce a unified computational theory of games
When its removed, it replaces itself with a token that is almost as good, meaning its a lot of value for its mana cost
Then that Resist +1 lets her survive against meta must-removes like Ariel Spectacular Singer, Ursula Deceiver of All, Banzai Gluttonous Predator, and Diablo Devoted Herald (if you can give her Evasive, of course)