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You can grind your way upwards, but you want to go fast, you still have to spend. But even if you stay at low ranks, you still get reward cards, which you can sell. I only have level 1 cards, my deck sucks, but I've climbed to bronze 3 so I'm getting 5 reward cards. It's good enough imo.

tl;dr: now you can grind your way up

I've just sent you another sbi share.

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