1Critical Missile
GoldWhen you Critically Strike, fire missiles dealing magic damage.
Gain 
25% Crit chance.
BARAM: Mayhem · Patch 16.20SennaARAM: Mayhem build
the Redeemer
- ARAM: Mayhem rank
- #42 / 173
- Top augment
- Critical Missile
Tier B
Scopier Weapons · Upgrade Infinity Edge
Senna best augments
All augments →1
2Scopier Weapons
GoldGain 150 (melee) / 100 (ranged) Attack Range.
3Upgrade Infinity Edge
GoldGain 500 Gold.
Having Infinity Edge allows your Critical Strike Chance to grant random 
Critical Strike Damage each Attack.
4Soul Siphon
GoldHeal for 12% of damage done by Critical Strikes.
Gain 25% Crit chance.
5Dual Wield
PrismaticAttacks fire a bolt that applies 
On-Hit effects at reduced strength. Gain 10% total Attack Speed.
6Mercy's Strike
GoldAfter healing or shielding your ally with , your next basic attack gains attack range, attack speed and deals bonus max Health magic damage.
7Vulnerability
GoldYour Item and damage over time effects can Critically Strike.
Gain 25% Crit chance.
8Critical Rhythm
GoldYour basic Attack stacks Attack Speed on Critical Strikes.
Gain 25% Crit chance.
9Typhoon
SilverYour Attacks shoot a missile at an additional target, dealing reduced damage and applying On-Hit effects.
10Scopiest Weapons
PrismaticGain 250 (melee) / 150 (ranged) Attack Range.
Augment order comes from OP.GG. Runes, items and skill order below come from regular ARAM games on the same map.
Recommended Senna build
Most played and most reliable choicesRunes
Spells
Skill priority
Q
W
EStart
Boots
Core
Senna runes
49.9% WR29.7% pick28,655 games
Precision
Inspiration
47.0% WR26.0% pick25,130 games
47.3% WR17.4% pick16,853 games
49.2% WR1.0% pick997 games
Senna skill order
52.2% WR61.0% pick44,046 games
Q123456789101112131415W123456789101112131415E123456789101112131415
R123456789101112131415Senna summoner spells
49.7% WR56.9% pick53,753 games
47.6% WR13.2% pick12,512 games
Power curve
Scales into the late game
48.1
53.5
55.1
57.7
64.8
Win rate (%) by game length in minutes. Dashed line = 50%.
Senna items
First three completed items53.6%
11.9% · 9,013 games
56.5%
4.6% · 3,476 games
45.8%
4.3% · 3,285 games
44.0%
3.3% · 2,529 games
42.6%
3.3% · 2,479 games
Start44.7%
19.3% · 17,986 games
Boots49.9%
49.1% · 41,228 games
Boots46.8%
41.9% · 35,193 games
Boots49.3%
4.5% · 3,788 games
Senna situational items
How often each item ends up in the final buildRapid Firecannon54.6% · 48.1%Statikk Shiv52.5% · 52.0%
The Collector44.4% · 45.5%
Infinity Edge41.8% · 50.9%Black Cleaver31.0% · 53.4%
Blade of The Ruined King23.8% · 51.1%
Kraken Slayer18.4% · 49.4%
Muramana15.4% · 48.3%
Lord Dominik's Regards14.8% · 48.5%
B. F. Sword10.8% · 51.5%
Hexoptics C449.9% · 52.8%
Tear of the Goddess9.1% · 43.5%
Bloodthirster6.3% · 50.6%
Mortal Reminder4.9% · 47.2%
Serrated Dirk3.4% · 48.0%
Executioner's Calling2.3% · 43.5%Senna abilities
PassiveAbsolution
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, deal bonus damage, and briefly grant her a portion of her target's Move Speed.
QPiercing Darkness
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.
Cooldown: 15s · Cost: 70/80/90/100/110WLast Embrace
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.
Cooldown: 11s · Cost: 50/55/60/65/70ECurse of the Black Mist
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 Move Speed, are unselectable, and hide their identities.
Cooldown: 26/24.5/23/21.5/20s · Cost: 70RDawning Shadow
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.
Cooldown: 140/120/100s · Cost: 100