Here are the goals for our tribes, taken directly from the handoff document
Previously, I discussed the flavor of the world of Tarkir, which you can read about here
Additionally, purchasing Poke Gold allows you to reduce the timer by one hour per use, helping you open booster packs more frequently
The English version will be getting an official announcement for it at a later date

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Both are pretty standard card advantage engines, though they go about earning you value in very different ways