Near the end of the game, using this ability could force your opponent to lose if they run out of cards
The main sources for Japanese Pokmon cards: Pokmon Center Japan (pokemoncenter-online.com) is the Japanese equivalent of the US store, carrying official products at MSRP in Japan
Its useful to know how far youre thinking about deviating in power level when taking a card that works with your current plan in some way, but at least in the beginning, a straight ranking system can go a long way
One is a Planeswalker and one is a Sorcery: Kaito, Cunning Infiltrator and Blasphemous Edict
The most played nonland main deck cards include Go for the Throat, Cut Down, Burst Lightning, Monstrous Rage, Monastery Swiftspear, Torch the Tower, Anoint with Affliction, and Llanowar Elves
Good luck!