Having had an overflow of science in my stash, and a high amount of skill and mystic T4cc I decided to trade 10 my science and 4 of skill and mystic each. I opened 30 T4cc crystals in hopes of obviously getting other varieties. This is what I got. I personally believe the odds of receiving this many science and skill T4cc's is very low, and it beggars the obvious question of whether the RNG is cooked to work against us, depleting our resources. The other bizarre thing is I opened 30 crystals and show a sum total of 41 T4cc's. Look at the number of science and skill crystals I received!