When a Pokmon-EX has been Knocked Out, your opponent takes 2 Prize cards., When 1 of your Pokmon becomes a Mega Evolution Pokmon, your turn ends
It is almost guaranteed to be not just a small loss, but a major one
I've not managed to find evidence of any of these corrected cards for sale yet, which presumably means they're not currently in circulation, if they do indeed exist
The Kanto starters are especially collectible, with the single Charmander, Squirtle, and Bulbasaur cards going for as high as $39.99 each on TCGplayer making the $67.53 charge for the whole box a great money-saving price if you manage to pull them
With so many cards using counters, it can help to have physical counter markers to actually mark the cards