Pokemon Card Strategy:
So as far as strategy goes, this is a card I would recommend having one of in any grass type deck. The reason I would suggest only one is because this card isn't too great for an EX card and isn't worth having get knocked out early in the game. Where this card really excels is late in games when you are about to lose, you can then put Shaymin EX in and use Revenge Blast and hopefully knock out one or two Pokemon with Shaymin then retreat it and win the game. I do wish that Synthesis was Shaymin's Ability instead of one of its moves because I think the move is a wasted move on an "extra" powerful EX card.
Pokemon Card Rating:
I would give this card a 8.4/10 rating.