Rockbreaker

Rockbreaker is a Level 2 Command Style exclusive to Terra in Kingdom Hearts Birth by Sleep. It is activated by using mine-related or edge-related s, jumping attacks like Quick Blitz, or commands like Brutal Blast, Geo Impact, Quake, and Meteor while in a LV1 Command Style.

Mechanics
While using Rockbreaker, Terra's attacks are more powerful, utilizing jumping attacks and swipes as his Keyblade drags and smashes against the ground, kicking up dirt along the way. The standard four-hit combo sprays rock debris upon enemies. The combo finisher consists of Terra flipping in the air and jamming his Keyblade into the ground, causing a piece of earth to jut up from the ground. The finisher consists of Terra summoning three large boulders from the ground and sending them to damage enemies.

Obtaining Rockbreaker
Felsspalter
 * Terra learns Rockbreaker after defeating the Trinity Armor in Radiant Garden.