Enjoy the power of the Reanimation Queen
For context, the professors are essentially the referees who oversee Pokemon tournaments and events
If you think of it over-literally as "flipping the card over" then it's logical to imagine everything falling off
This one will be quite meta-dependent, but if youre regularly playing in pods where targeted removal is common practice - and lets be honest, it should be - then you might want to consider this card
From exile, you can cast the other side of the card, getting yourself a permanent, typically a few turns later, but not really putting yourself behind on cards
A 1st Edition Base Set holo can be worth thousands to six figures, a Shadowless or Unlimited holo hundreds to thousands, and a common non-holo under a dollar