When units die near Senna, their souls are periodically trapped by the Black Mist. Senna can attack these souls to free them, absorbing the Mist that held them in death. Mist fuels her Relic Cannon's power with increased Attack Damage, Attack Range, and Critical Strike Chance.

Attacks from Senna's Relic Cannon take longer to fire, deals bonus damage , and briefly grant her a portion of her target's Movement Speed.

Cost: 70/80/90/100/110 Mana
Range: 600

From the twin barrels of her Relic Cannon, Senna fires a unified beam of light and shadow through a target, healing allies and damaging enemies.

Senna shoots a bolt of piercing shadow through an ally or enemy. Enemies hit take {{ totaldamage }} physical damage. Allied champions hit are healed for {{ totalheal }} health. Basic attacks reduce Piercing Darkness's cooldown by {{ cdreductiononhit }} seconds.

Cost: 50/55/60/65/70 Mana
Range: 1150

Senna sends forth a wave of Black Mist. If it hits an enemy it latches onto them hungrily, rooting them and everything nearby after a brief delay.

Senna sends forth the black mist, dealing {{ damage }} physical damage to the first enemy hit. After a {{ delaytime }} second delay the target and other nearby enemies are rooted for {{ rootduration }} seconds.

Cost: 70 Mana
Range: 400

Senna draws the Mist she has stored in her weapon into a storm around her, embracing darkness and becoming a wraith within. Allies who enter the area are camouflaged and also appear as wraiths as the Mist shrouds them. Wraiths gain increased movement speed, are unselectable, and hide their identities.

Senna dissolves into a cloud of mist for {{ buffduration }} seconds, becoming a wraith. Allied champions who enter the mist are Camouflaged and become wraiths when they leave. Wraiths gain {{ totalms }} Movement Speed. They are unselectable and hide their identities as long as no enemy champions are nearby.

Cost: 100 Mana
Range: 25000

Senna calls upon the relic stones of fallen Sentinels, splitting her relic cannon into a holy array of shadow and light. She then fires a global beam that shields allies from harm, while damaging enemies caught in the center.

Senna fires a blast of light with global range. Enemy champions hit take {{ totaldamage }} physical damage. Allied champions hit in a wider area receive a shield for {{ shieldduration }} seconds that absorbs {{ totalshield }} damage. The shield's power scales with the amount of mist Senna has collected.