Guide · Support

Senna Guide

the Redeemer

Support

Marksman

Tier B Support

Senna, the Redeemer, is a support and marksman champion that is demanding to master. Across our 881 analysed ranked games, Senna is mostly played as Support (83% of its games), and more rarely as ADC (17%), with a 51.4% win rate in that role: tier B among Support champions (#20 of 39, ranked by win rate). Senna's damage is mostly physical (91%): armor is the best defensive answer against this champion. Win rate varies with game length: 56.0% in short games (under 25 min, 223 games) versus 41.1% in long games (over 35 min).

Averages measured over 729 Support games played with Senna, from our ranked Solo/Duo data collection.

Combos and how to play

Senna is a ranged marksman-support: her passive lets her free the souls trapped in the Black Mist, which boosts her damage, range and critical strike chance. Piercing Darkness heals allies and damages enemies on its line, Last Embrace roots, and her ultimate has unlimited range with a shield for the allies it hits.

Harassment

Q › AA AA › W

When: An ally is lined up with the enemy.

Piercing Darkness heals allies and damages the enemies it hits; your cannon attacks benefit from the movement speed bonus.

The root

W › Q › AA AA

When: An enemy is within Mist range.

Last Embrace sends a wave of Mist: if it hits an enemy, they are rooted along with nearby enemies after a short delay.

The global ultimate

R

When: Your allies are fighting far from you.

Dawning Shadow fires a beam with unlimited range: a shield for the allies hit, damage for the enemies in the center.

Laning phase

Attack the souls freed when units die near you. Your cannon fires more slowly but deals extra damage and gives you part of the target's movement speed.

Common mistakes

• Not collecting the souls: they empower your cannon.
• Casting Last Embrace when your team cannot take advantage of the root.
• Using the ultimate without aiming for allies or the enemy center.

Build, runes and summoner spells

The most-played core build is Black Cleaver, Statikk Shiv, and Rapid Firecannon (55 games, 54.5% win rate).

Black Cleaver+Statikk Shiv+Rapid Firecannon

55 games · 54.5%

Infinity Edge+Black Cleaver+Rapid Firecannon

27 games · 66.7%

Infinity Edge+Black Cleaver+Statikk Shiv

23 games · 47.8%

Summoner spells

Flash + Heal50.9% · 654 games

Exhaust + Flash61.3% · 62 games

Most-played runes

Deathfire Touch + Inspiration

51.6% · 349 games

Primary tree · Sorcery

Manaflow Band99%

Celerity97%

Gathering Storm90%

Secondary tree · Inspiration

Magical Footwear95%

Jack Of All Trades80%

Shards

Attack speed85%

Adaptive force68%

Health85%

Deathfire Touch + Precision

50.0% · 78 games

Primary tree · Sorcery

Manaflow Band96%

Celerity92%

Gathering Storm81%

Secondary tree · Precision

Presence of Mind88%

Cut Down77%

Shards

Attack speed90%

Adaptive force94%

Health91%

Fleet Footwork + Resolve

46.7% · 75 games

Primary tree · Precision

Presence of Mind96%

Legend: Alacrity96%

Cut Down95%

Secondary tree · Resolve

Bone Plating89%

Revitalize83%

Shards

Attack speed95%

Adaptive force83%

Health scaling76%

For each row, the most picked rune among the games played with this page (share of games in brackets).

Which items to build against the enemy team?

We sort every game by the enemy team's damage. These are Senna's completed items and their win rate in each situation; "▲" marks an item that does at least 3 points better than its usual win rate.

Mostly magic-damage enemy team57.0% · 200 games

At least 50% of their damage is magic

Black Cleaver 61.9% ▲

Statikk Shiv 53.8%

Rapid Firecannon 50.9% ▲

Infinity Edge 65.2%

Hexoptics C44 55.6%

Echoes of Helia 50.0%

The item that stands out most is Black Cleaver: 61.9% win rate, +9 points versus its usual win rate.

Mostly physical-damage enemy team47.0% · 200 games

Less than 35% of their damage is magic

Black Cleaver 46.6% ▼

Statikk Shiv 49.4% ▼

Rapid Firecannon 41.5% ▼

Infinity Edge 40.0%

Serpent's Fang 44.4%

Hexoptics C44 41.2%

No item clearly stands out in this situation: the usual build remains the reference.

Balanced enemy team50.8% · 329 games

Mixed physical and magic damage

Black Cleaver 51.8%

Statikk Shiv 56.5%

Rapid Firecannon 48.9%

Serpent's Fang 51.4%

Hexoptics C44 59.4% ▲

Infinity Edge 62.1% ▲

The item that stands out most is Hexoptics C44: 59.4% win rate, +6 points versus its usual win rate.

Counters and matchups

Who counters Senna as Support

Nautilus Senna: 35.5%31 games

Nautilus has the edge in 65% of the 31 Support duels against Senna. See the Nautilus guide.

Blitzcrank Senna: 38.9%18 games

Blitzcrank has the edge in 61% of the 18 Support duels against Senna. See the Blitzcrank guide.

Thresh Senna: 45.0%20 games

Thresh has the edge in 55% of the 20 Support duels against Senna. See the Thresh guide.

Pyke Senna: 47.1%17 games

Pyke has the edge in 53% of the 17 Support duels against Senna. See the Pyke guide.

Nami Senna: 50.0%26 games

Nami has the edge in 50% of the 26 Support duels against Senna. See the Nami guide.

Who Senna is strong against

Rell66.7% · 15 games

Lulu61.5% · 26 games

Bard59.1% · 22 games

Alistar57.1% · 21 games

Milio56.2% · 16 games

Win rates measured over direct same-role duels; only matchups with more than 15 games are listed. See all of Senna's matchups.

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.

WLast 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.

ECurse 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.

RDawning 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.

Frequently asked questions

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