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Nice! :) Sent ya some tokens yesterday after you resteemed :) Thanks!

do I just keep the tokens in the wallet to earn rewards one that has been implanted?

Nothing is 100% official yet but yes, the idea is that the more SMPT you have, the more rewards you will be eligible for.

so the only way for me to get more SMPT is to buy or play poker with you?

Not necessarily, I also give them away to people who make posts about Steem Monsters Poker, upvote/resteem/comment on my posts, and will likely be giving some away for other reasons. If you wanted a lot of them at once you would have to buy them from the open market though.