Character Strategy- CC-2224 “Cody”

I've put probably $300+ to try to get Echo, got him but only 3*, I may not be the mastermind behind this game but I think putting a rotation on the shard shop for grevious and some of the harder to get characters would make for a lot more time put in the game for lots of ppl or just make it a bit simpler and just put Echo, Rex, and Cody in the shops maybe put Cody in a bit later, yeah it would make the clones easier to get but ppl would still have to put a lot of time to get decent clone team