Map 7 crystals are disappointing
I'm going to start by saying that overall my experience with map 7 was enjoyable. I thought the maps were engaging and challenging. I like that there's going to be variation which keeps the grind from getting stale much like what map 6 is. Also, the challenge of looking to new champs that players can rank to help on certain nodes.
I'd also like to say kudos on the rank rewards and milestones. I think they feel fair for the grind.
However, these map 7 crystal drop rates are a major letdown. Personally i popped 22 map 7 crystals yesterday and got 0 t5B frags in return. This was the case for MANY summoners. on the flip side, I have seen the SS's of a good number of folks that hit the RNG lottery as well.
In my opinion, for the time invested and the cost which is significant,( 7x5 - 667k gold, 84k bc, 50k loy roughly) there should be some amount of t5 that you can reliably count on from these crystals.