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Press FOCUS/CAST or QUICK CAST without holding UP or DOWN to launch a projectile that passes through enemies and deals damage. The projectile now penetrates all objects in its path including walls and invulnerable parts of enemies, such as a shield or shell, but will not damage a fully protected enemy.
Flukenest turns the Shade Soul into a horde of black baby flukes that bounce around dealing damage.
When Flukenest is combined with Defender's Crest, it launches a single large fluke that explodes into a damage-dealing cloud of gas.
Shaman Stone increases the width of the projectile and increases the damage dealt by 33%.