Ebullient Core Crystal

The Ebullient Core Crystal is a unique Core Crystal in Xenoblade Chronicles 2. It is obtained by talking to Hurryscurry in the Argentum Trade Guild after obtaining the A Firecracker of a Gal Key Item from the Xenoblade Chronicles 2 Expansion Pass. Upon resonating with the Ebullient Core Crystal, a Driver can awaken the Rare Blade Crossette.