you have to buy things just to be good,the aniversary 7 rewards are disgusting,the levels are to hard and cost to much energy,the xp they give you is to small,the chances to have an uber rare or a legendary rare are to small the events reward are horrible,the xp needed do level up a rare,super rare,uber rare and legendary rare is to expensive,the prices of the offers are to expensive and normaly aren't that good,the misions are hard or you have to spend more than the reward is gonna give you etc