Yes, [Albel answered Sephiroth,] I've infused some of those crystals into weapons. In the Crystal Forest, too, there were even crystals growing on trees. They very well could be linked to life forces.

[He looked over his own thoughtfully, slowly turning purple. He hadn't even died, not once, but it still changed on its own. Little by little, steadily on.]

If it's updated the Calamity simulation, then it must have been used in a previous cycle. Perhaps it has been dormant since the last Heroes were here.

[And failed.]