Riku's battle stats

[riku]

Signature Abilities
Darkstorm: Riku's Limit Break causes his blade to become engulfed in light as he strikes down the enemy. Cooldown 5, does heavy damage.

Dark Shield: Riku summons a shield of darkness to block incoming attacks, Cooldown 3 posts.

Dark Firaga: Riku blasts opponents with dark fireballs, deals moderate damage, Cooldown 3 posts.

[Albel Nox]

All are alright, but remember that Dark Shield and Dark Firaga are sub-abilities, not part of the signature ability.