"win more" is becoming a cliche here. It looks like two cards are going to split the thread in aggro/combo, like they made in Team America into aggro/control.
Archon is nice against sneak show, so does FKZ finisher, with the bonus of don't letting them time to answer by bouncing the target later.
I think that if sneak show start winning too much, people will be siding against it (like happened with Burn), and they'll Mulligan into Echoing Truth every time, so I'm already thinking about another options beyond Archon to fight Sneak Attack. So far, Archon is giving too much happiness against it.