Dark Burst (ダークバースト Dāku Bāsuto) is an ability in Kingdom Hearts III. It allows the user to counterattack after a successful block by sending a burst of dark projectiles in all directions.
The projectiles take on the form of broken transparent chains, and hexagons of indigo crystal.
Mechanics
In Kingdom Hearts III, Dark Burst is an action ability. It is activated by pressing 
after a successful block using Dark Guard.
Learning Dark Burst
Kingdom Hearts III
- Dark Form has Dark Burst as a default ability.