Village Rites and Deadly Dispute are two newly printed cards that give you this effect cheaply, and at great efficiency
This can be devastating for any opponent who isn't properly prepared with certain tools, items, or supporter cards that could help them recover their cards again, thereby giving the Sylveon ex player a clear advantage
Finally, the most integral tech card in the format, Manaphy, is gone, so players will have a hard time protecting their benched Pokmon from their opponent's attacks
This Blastoise card is one of two that were used as presentation cards when the Pokmon trading card game was initially pitched to Nintendo
The level of fanservice is something everybody wanted, and while the battle comes to a halt before the victor is declared, it's an awesome way to end the series.
Discarding a Sin card in your hand and paying 9 Crystal Points activates the ability: if Sin is still on the board at the end of your next turn, your opponent loses