1235 fangs and I've used 37 crystals so far. I did use 4 or 5 on charisma refills, and didn't go for the most efficient way either as I needed silvers everywhere. At least I got 7 Pallis, 9 Calliope, 8 Daniella and 7 Gustav to help towards awakening. I had saved up to 100 crystals anyhow to get the delux stamp card, so I'm finally expanding my box too. We'll see how much I need to waste on rolls at the end of the month once I figure out what the maximum box space is and how the barracks expansion thing works.