Xander always has been and continues to be Support Guy. While he's obviously matured over time (to the point where his talents facilitate taking on Challenges and enemies solo), he's still at his best when he's helping others. And that's what this card lets you do. As long as Xander himself isn't too busy with being directly involved in the confrontation (or bushed from doing something else), he can add that extra bit of Xander-something to your current Challenge. Your characters needing a bit more wit, perhaps a little insight into the situations at hand, or maybe just an extra pair of hands for cutting baddies down to size? As always, Xander's your man.