Mienshao basically has one move that can do something no matter what other cards you have in your deck, I would try and have a few Pokemon with free retreat costs in my deck, use that Pokemon for awhile and then when the defending Pokemon is close to getting knocked out, move Mienshao in there and use Meditate to knock it out, Mienshao's retreat cost is low so you could retreat it back the next turn
Turn this king in whichever direction you want, it is simply a great card that rewards you for establishing access to all the colors
Deep within the heart of the forest, a new sun flared to life
If these games go really slow, then some of these might be good at breaking those stalled boards, especially this Crystal
You would be modifying your deck list and removing a card in the middle of a match, and physically tearing up a card probably counts as marking it which is not permitted
MTG Bloomburrow contains a series of exceedingly rare Raised Foil Anime cards