CommentStreams:2875e014dea5b2ee3ac234f1420400d1

There is a very precise formula for troop power, and it's not the usual one. According to it   there is a power multiplier which depends on the card type (common, rare, etc.), and then it's a sum of stars plus ~1/7 of it's level. Plus separately gems and bonus from soulbind. So the cheapest way to increase your power - is to add any free gems you have to all cards and then add more stars starting with the weakest cards.

Those 37000 medal donations - these are the side effect of the war 1 medal awards glitch when all who were online at a certain time gained 10 times the intended winning, and got to keep it as long as they managed to donate it quickly to the guild through the shop.