Grandmaster Alliance Crystals
There was a grandmaster type crystal released for the arena, daily, and free crystals but none for alliance crystals and there should be. What you can do for these crystals is increase the loyalty help for those with uncollected title from 1000 points to 3000 points and they can purchase a grandmaster alliance crystal for 3000 loyalty points. In those crystals can be 4* and 5* versions of Unstoppable Colossus plus boosts and iso. Basically what is in a regular alliance crystal now just better stuff because as it is 2* and 3* UC most don't need anymore and the lesser health and attack boosts aren't that effective any more for those that are uncollected.