The prize for your efforts, should you come out on top, is that all-important Collector Booster
Mega Heroes Mini Tins feature artwork depicting one of five mega-evolved Pokmon: Mega Venusaur, Lucario, Gardevoir, Kangaskhan, or Latias
If you roll between a 1 and 9, each player sacrifices a permanent, if you roll between 10 and 19, only your opponent does
Then it leaves the battlefield (boo), but then it returns to the battlefield (yay!)
While the art and style of Pokmon cards have changed over the years, the information is always in the same place and you can read a Pokmon card like this: Basic Pokmon are the initial form of any Pokmon in the TCG