It isn't fair. Not to the extent that it lags. I played a match just now and had a 110 combo going without a single amount of damage being done. It's ridiculous. They need to figure out a way to keep people out of certain servers....looking your way China
Only through gem swapping and through mystery boxes. After gaining all the allies, the only thing you get from the present drops are sushi, tea, and charms.
Love these stats. I personally think coins need to be completely nixed from the box because they are useless after a certain point. Until Glu either makes a gem for coins exchange, or makes some items available through coins, then I see no point in wasting 20% of the prizes on something useless.