As for Starmie ex, a new Vaporeon variant threatens to make the infamous Misty card even more powerful
I was actually at dinner with some of my Magic friends who only vaguely know Pokmon (but who have extremely strong metagame fundamentals), and I asked them this question: Consider a metagame with three decks: Rock, Paper, and Scissors
Within this app, simply type in the number of cards with each name not forgetting to include Land as part of the deck list too
The pros are that these are easy to attain, and happen in the background The cons are that WotC picked which cards you earn and you have a limited time to do so
But maybe just decrease the attacking monster's Attack, Flip it into Defense Position, Bounce it, or heal your opponent's Life Points
Omnath, Locus of Creation is one of those new, power-crept creatures with too much text that can seemingly do it all: Draw cards, gain life, generate mana and he even packs an in-built win condition