Name: Senna tier and win rate by rank band / Patch 7.3e
Creator: Tencent

Skills

P

ABSOLUTIONPassive

Mist Absorption (Soul Reap): - Absorbs Mist by attacking souls that spawn from dead enemies. - If not attacked, souls nearby Senna will be absorbed automatically on disappearance. Mist Absorption (Living Extraction): - Siphons Mist from enemy champions she hits twice within 4 seconds, dealing 1% (based on level) of their current Health as bonus physical damage. - Mist can only be siphoned from the same target once every 6 seconds. Mist Bonuses: - Gains 0.9 Attack Damage per stack of Mist. - Gains 15 Attack Range and 10% Critical Strike Chance per 20 stacks. - 35% of excess Critical Strike Chance is converted to Physical Vamp. Relic Cannon: - Attacks take extra time to fire. - Attacks deal 10 bonus physical damage. - Attacks briefly grant Senna 10% of the target's Movement Speed. - Critical strikes deal only 80% critical damage. Senna does not gain Attack Damage on level up.

Q

PIERCING DARKNESSSkill 1

Shoots a bolt of piercing shadow through any object, dealing 30 (+60% bonus AD) physical damage to enemies, slowing enemies by 15% (+0.1% bonus AD +0.06% AP) for 0.75 seconds and restoring 40 (+40% bonus AD +25% AP) Health to ally champions. Attacks reduce Piercing Darkness's cooldown by 1 second. This ability's cast range matches Senna's attack range and its cast time is improved with Attack Speed. It applies on-hit effects to enemy champions.

	LV 1	LV 2	LV 3	LV 4
Cooldown	15
Cost	70	80	90	100
Base Damage	30	60	90	120
Heal	40	70	100	130
Duration	0.75	1	1.25	1.5

W

LAST EMBRACESkill 2

Sends forth a wave of Black Mist, dealing 90 (+70% bonus AD) physical damage to the first enemy hit. After a 1 second delay, the target and other nearby enemies are rooted for 1.3 seconds.

	LV 1	LV 2	LV 3	LV 4
Cooldown	11
Cost	55	60	65	70
Base Damage	90	155	220	285
Root Duration	1.3	1.6	1.9	2.2

E

CURSE OF THE BLACK MISTSkill 3

Dissolves into a cloud of mist for 6 seconds, becoming a Wraith. Allied champions who enter the mist are Camouflaged and become Wraiths when they leave. Wraiths gain 20% Movement Speed, are Unselectable, and hide their identities as long as no enemy champions are nearby. Camouflaged: These units are hidden from view. They are revealed by nearby enemy champions, turrets, and True Sight.

	LV 1	LV 2	LV 3	LV 4
Cooldown	22	20	18	16
Cost	70
Duration	6	6.5	7	7.5

R

DAWNING SHADOWUltimate

Fires a global wave that shields ally champions from 120 (+50% AP +2 per Mist) damage for 3 seconds, while dealing 250 (+120% bonus AD +70% AP) physical damage and applying Mist to enemy champions caught in the center.

	LV 1	LV 2	LV 3
Cooldown	85	80	75
Cost	100
Base Damage	250	400	550
Shield	120	160	200

Tier by Rank

Official

Tier and numbers

TierWinPickBan
Diamond+A← A49.7%5.3%5.5%
Master+B← B49.6%5.2%5.8%
ChallengerB← B50.3%4.2%4.8%
LegendaryA← A50.6%5.8%4.5%

Tencent official (CN server) / Support / 2026-11-08

Support: win rate #21 of 33Pick rate #11Support median win rate 50.6%

Tier is A at both ends and B in between, a 0.9 point spread in win rate.

Reading the table

The “← A” after a tier is the tier in the previous ranking.

Legendary is the top tiers of the Legendary Queue, a separate ranked queue for top players.

Among Support

One dot per champion

Win rate

44%50%56%Senna · A

0%Pick rate →

Build Trends

Official Tencent data (China server)Diamond+ / SupportAs of 2026-11-0611/06

Rank

SortFaded rows: pick rate under 2%

Build patterns

Splits into 2 core · 3 rune patterns

How it works

Durability: health, armor, magic resist
Attack damage: attack damage, armor penetration
Ability power: ability power, magic penetration
Attack speed: basic attack speed
Ability haste: ability cooldowns, mana

The combos in the tables below, grouped by shape; not a ranking or a verdict. Each item goes to the family its stats are worth the most gold in, and a shape is how many of the 3 core items fall in each family. Effects (passives) are not counted, and items without stats are left out. Runes are grouped by keystone and the most common tree among the rest. The icons show the most common combo of each shape. A shape at 10% or more counts as a pattern; shapes under 3% get no card. Less common item families are families whose items appear in under 10% of the Chinese combos but do show up in overseas guides or streamer and pro builds. Their icons are separate item options seen in those sources, not one build. Families are listed by how many sources they appear in.

Core items2 patterns

56.9%Attack damage ×2

37%Attack damage ×1Attack speed ×1

6.1%Durability ×1Attack damage ×1

Runes3 patterns

54.4%Fleet FootworkPrecision ×3

25.8%Fleet FootworkResolve ×3

11.8%Dark HarvestPrecision ×3

5.4%Fleet FootworkDomination ×3

Less common item familiesItems from families under 10% of the Chinese combos, but found in other sources

Durability item optionsItems seenChinese combos 6.1%Overseas guides 9 itemsStreamers and pros 2 of 6

Ability haste item optionsItems seenChinese combos noneOverseas guides 1 itemsStreamers and pros 1 of 6

Core items (3)12 combos, by pick rateby win rate

CombinationPickWin
17.8%51.2%
10.0%50.1%
9.8%53.7%
8.0%50.7%
3.2%47.9%
2.5%47.0%
1.5%49.5%
1.4%53.1%
1.4%43.1%
1.3%54.6%
1.1%48.8%
1.1%52.0%

Runes10 combos, by pick rateby win rate

CombinationPickWin
23.2%49.1%
17.0%52.6%
12.9%49.9%
9.1%47.4%
4.6%51.9%
4.2%47.1%
2.0%45.1%
1.6%48.1%
1.3%46.7%
1.2%49.5%

Summoner spells5 combos, by pick rateby win rate

CombinationPickWin
79.8%50.3%
7.4%45.9%
7.2%48.2%
2.2%44.3%
2.2%48.6%

Pick and win rates are Tencent's own figures, shown as published (sample sizes are not published).

Streamer and pro builds6 builds (1 pro)

Streamer / proCore itemsKeystone, spells
PROWRL职业选手推荐
抖音我叫PIMS
掌盟月游神
抖音Yukiya
叫我Kalista
LOLM橙子

Items in these builds

Chinese streamer and pro builds published by Tencent (pros first). Support items are not included.

Patch Changes

Ver. 7

History7.2aAdjusted7.3Changed7.3aAdjusted7.3bNerf

7.3bNerf2026-10-15Combat power Lv15 11,652 → 11,627 (-0.2%)

Absolution

Standard Critical Strike Damage: 90% → 80%
Attack Damage per Black Mist stack: 1.25 → 0.9

Piercing Darkness

Base Damage: 50/80/110/140 → 30/60/90/120

7.3aAdjusted2026-09-29Combat power Lv15 11,576 → 11,502 (-0.6%)

Base Stats

Attack Speed ratio: 0.4 → 0.3
Base Attack Speed: 0.4 → 0.3
Base Bonus Attack Speed0.6 → 1.1
Attack Speed per level: 0.05 → 0.025
Bonus Attack Speed now provides less benefit toward reducing her basic attack windup.

7.3Changed2026-09-22

Base Stats

Base Health: 600 → 570
Attack Speed Ratio: 0.4
Base Attack Speed: 0.4
Base Bonus Attack Speed: 0.6
Attack Speed per Level: 0.05

Absolution

Attack Speed Ratio: 0.4
Base Attack Speed: 0.4
Base Bonus Attack Speed: 0.6
Attack Speed per Level: 0.05
Damage based on Current Health: 1.2%~12% (based on level) → 1%~10% (based on level)
Critical Rate gained per 20 Mist: 15% → 10%
[New] Basic attacks now deal 90% of normal critical strike damage when they critical strike.

Piercing Darkness

Base Damage: 50 / 90 / 130 / 170 → 50 / 80 / 110 / 140

Dawning Shadow

Damage: 250 / 375 / 500 + 120% bonus Attack Damage + 50% Ability Power → 250 / 400 / 550 + 120% bonus Attack Damage + 70% Ability Power
Shield: 120 / 160 / 200 + 40% Ability Power + Mist × 4 → 120 / 160 / 200 + 50% Ability Power + Mist × 2

7.2aAdjusted2026-07-15

Absolution

Current health damage: 1.2%–12% (based on level) → 1%–10% (based on level)

Dawning Shadow

Shield: 40% Ability Power + 4 per Mist stack → 50% Ability Power + 2.5 per Black Mist stack

Patch notes 7.3d and earlier versions

Analysis

Nothing equipped

Combat Power at Lv15 is 11,627 (#62 of 142, #7 of 26 Marksman). Up from #142 at Lv1: it grows with levels.

LvLv 15

Stats 62% · Skills 38%

Growth by level

SennaMedianMarksman median

Shape of ability effects

Lv15

Stat buffs1,800

Damage1,228

Crowd control851

Heals & shields354

Movement122

Slows16

8%Share that works on allies

2.2sTime the enemy is stopped per fight

Growth by level

Lv	CP	Median	Marksman median	Rank
1	5,103	5,897	5,544	142
2	5,909	6,459	5,924	121
3	6,276	6,934	6,418	131
4	6,786	7,485	6,880	125
5	7,318	7,899	7,352	115
6	7,868	8,244	7,648	101
7	8,175	8,552	7,938	102
8	8,605	8,948	8,262	97
9	9,087	9,378	8,635	90
10	9,651	9,716	8,922	75
11	9,941	10,018	9,168	75
12	10,390	10,461	9,551	77
13	10,782	10,786	9,864	72
14	11,309	11,138	10,153	61
15	11,627	11,462	10,439	62

Shape of ability effects

Lv15

Level 15 values with nothing equipped.

AttackDefenseMobility

- Physical damage (2 hits: 1-10% current health)597G
- Physical damage (Relic Cannon +10)49G
- Move speed (10% of the target's)171G
Combat only: 50%At most once per 8sDamage valued like healingContinuous values at midpoint1 attack per secondSurvival factorAssumed durationChampion median
- Physical damage316G
- Slow102G
- Heal (allied champion)342G
Combat only: 50%Damage valued like healingSurvival factorMove speed % as flatChampion medianSkill ranks from level
- Physical damage1,023G
- Crowd control (root)1,774G
Combat only: 50%One fight per 90sFight length: 10 sChampion medianSkill ranks from level
- +20% move speed (as a Wraith)641G
Combat only: 50%Survival factorMove speed % as flatChampion medianSkill ranks from level
- Shield (allied champions)333G
- Physical damage289G
Combat only: 50%One fight per 90sChampion medianSkill ranks from level

Gold values with nothing equipped. Ratios such as AP grow with your build in the Build Lab. Tap a row to see the formula. Includes the stack estimate (ABSOLUTION).

Assumptions

Combat only: 50%

Effects that only work in combat or under a condition are counted as active half the time. The same rule applies to every rune and spell.

At most once per 8s

Effects that re-trigger on attacks are counted at most once every 8 seconds, since a single fight only allows so many procs.

Damage valued like healing

Damage to an enemy is valued like healing yourself the same amount, priced with the health regen rate.

Continuous values at midpoint

Values that vary continuously with the target's or your own state (damage rising with the target's missing health or with charge time, attack speed rising with your missing health, etc.) are taken at the midpoint of min and max, the same idea as assuming 50% missing health.

1 attack per second

Effects on every Nth attack (every 3rd attack, etc.) assume 1 attack per second and are turned into seconds (every 3rd attack = once per 3 seconds). The 8-second floor for attack-triggered effects still applies.

Survival factor

Moving faster by some % is counted as that % more effective health, since speed lets you dodge and escape. Value = median max health × the speed gain × the health price.

Assumed duration

Effects whose duration or seconds aren't stated use one assumed value per kind: 2 seconds for move speed and slows, 0.75 seconds for knockbacks, 1 second for fears, and 90 seconds for a reuse interval. Transformations with no stated duration (Swain's demon form lasts as long as he keeps damaging enemy champions) are assumed to last 10 seconds and counted with the ultimate-transformation rule (duration ÷ cooldown).

Champion median

Values that depend on the champion, such as health, use the median of all champions at level 1 and level 15.

Move speed % as flat

Move speed % is converted to flat move speed against the median base speed of 350, then priced at the flat rate.

Skill ranks from level

A champion's ability values depend on rank, so rank is derived from level. The ultimate ranks up at levels 5 / 9 / 13. Remaining points go to abilities 1 → 2 → 3 in turn (1 / 0 / 0 at level 1, 4 / 4 / 4 at level 15). Which ability to max first is a judgement call, so every champion uses the same order. Abilities with a different number of ranks (such as Jayce's 5) follow the same rule, raising the lowest-ranked ability one point at a time; an ability learned from level 1 starts at rank 1.

One fight per 90s

A 15-minute match is assumed to have 10 fights. Shields and damage blocks that work once per fight are counted as extra health in every fight.

Fight length: 10 s

Crowd control that stops the enemy (stun, charm, etc.) is treated as time you aren't being hit. A fight is assumed to last 10 s, so it counts as holding seconds ÷ 10 × median max health in extra health each fight. Uses are capped like shields: the fewer of cooldown uses and fights.

Line: min to max · tick: median

HP2,250#127

Armor98#93

Magic Resist50#114

Attack50#142

Attack Speed0.735#142

Move Speed340#104

HP regen14#125

MP1,255#9

MP regen28#17

Lv 15	Senna	Min	Median	Max
HP	2,250	1,832	2,422	2,732
Armor	98	34	104	127
Magic Resist	50	45	60	80
Attack	50	50	109.5	147
Attack Speed	0.735	0.735	0.951	1.252
Move Speed	340	335	350	360
HP regen	14	14	19	29
MP	1,255	802	1,080	1,390
MP regen	28	16	25	36

Rank and min to max are among all 142 champions. Mana stats are among the 119 champions that use mana.

Available Skins

—

Senna

Skills

Tier by Rank

Tier and numbers

Among Support