活力：美國擴充

Four new clans is exactly what our table needed after twenty plays of the base game, and the Inuit wonder has become my group's favorite to race for. The four card dividers are a small touch but they finally keep the clan decks from turning into one messy pile in the box.

The Incan and Sioux clans bring such different strategies to the table that my group has already played three times this week. Each wonder feels properly weighted too, and those card dividers are a nice touch for keeping the box organized.

I wasn't sure how the new clans would balance against the original ones, but the Mayan cards bring such a different strategy to the table that every game since has felt fresh. The card dividers keep everything tidy in the base box, so setup takes no time at all.