Has anyone started a drop rate doc yet? It'd be nice to know what rate 4* star heroes are dropping versus the others. Or, are the packs just dropping shards? I can get a feel of what the player base has the most of. This game doesn't seam to be using the same logic for hero rarity as HODA and MCOC.
Sample Size is up to 264 now. So far it's roughly
Shards - 75%
1* - 6%
2* - 7.6%
3* - 8%
4* - 3.4%
No, you just get a discount on the cost of the packs.