Been playing for about 6 months, you steadily keep reducing the amount of gems that can be earned. Hunter, Adventure, Titan modes all went from 10 gems down to 4-5 per round. Almost every card earned is for a ship we don't have, or a ship that's maxed out; no help! And if we upgrade a ship or drone, it takes cards away from other ships or drones; WHY?? Finally, the coins are practically useless, yet you throw them out like candy.