about general grevious 7 star shop and fleet shop.

this is so stupid it hurts, just uninstall the game please

Just keep at it. It's not a 1/33 chance. I do not recall how many toons GG shares a slot with in there, but it's closer to 1/7. Just keep a reserve of fleet currency on hand, keep an eye out for him, and buy him when he appears and that farm will be past tense soon enough, I assure you.

You need to be patient, Grievous comes out a lot on the stores

What's your problem? You just have to collect extra heroes' shards to exchange them on shards shop's currency and easily buy grevious