Event Ideas and Key Upgrades
With the current invasion events, could we ask the developers for more achievement's and with higher rewards. The current levels can be achieved in a day or 2 which leaves scraping for event points for the rest of the week.
Also, could they maybe added trade in on keys, say 20 keys for the next grade up? would generate a lot of farming refills will be used in abundance.
Black market unit exchange and pvp improvement
Being part of an alliance is fine to get the 10% improvements, but otherwise not very useful. How about creating an exchange page where members can trade units and barter for goods such as gold. Trade that fully upgraded rare for that ultra rare or super rare that you have been waiting for. Or selling it to the highest bidder for gold or cash. The more you play the more unmatched cards and double i get, but never that last black flag ultra rare. It would definitely give the alliance angle a much needed interest boost.
Second improvement suggestion- in PVP you can only play 6 cards but sometimes you come up against another player and a quick strategy change would get you past with the win; however, when you go to make the change and return to PVP the opponent selection has changed rendering your strategy null. I understand the reason for this is in making the competition equal and competitive, but when you have created a versatile number of units and can not play them in the best situation, it decreases the strategy needed for success and makes upgrading of weaker situational units useless.
2 improvements
1 have a second set of cards available for substituting in the game. It would make the process more stream line and more fun to develop a complete arsenal of units.
2 change the way PVP Battles are matched to allow for exchanging units. When winning the battle the next opponents are based on the power of the last army used and the difficulty increases as it does presently.
Long post but just some frustrations that could be fixed and improve game.