Before the new update, we used to make more coins, and more importantly we had plenty of chests with almost always rare and epic card, sometimes legendary.
With the new system there aren’t crates anymore.
Your new system gives 1% legendary and 5% epic.
Not only did we use to have plenty of crates with nearly guaranty of epic cards, but the crates become much less accessible, and chances are so low.
And with the monthly crate gone, say byebye to being able to upgrade your rare, rare or unique cards!