Cataclysm is a Concurrence, used after chaining 7 Level 1 Quickenings together in the original version and 6 Level 1 Quickenings in the Zodiac versions. It deals damage to all enemies with a power of 110, making it the second weakest Concurrence.
Cataclysm is a ground magical HP Attack for Vaan, learned by default. It requires 30 CP to equip (20 when mastered), 140 AP to master, and has both Melee High and Ranged High priority. Vaan punches through a crest of earth and sends a row of stalagmites that travel forward. The attack is mid-ranged, turns to track the opponent during start-up, crushes guards, and destroys stage elements.