Champions › Senna
Senna Bot Build, Patch 26.20 — Runes, Ability Damage & ARAM Buffs/Nerfs
the Redeemer · AD damageSupportADCBot
Every number below is computed from Riot's official game data for patch 26.20 — the Worlds 2026 patch (Data Dragon, with Meraki Analytics ability values and Riot's published ARAM balance), not sampled from match histories. Open the interactive labs to test Senna against any opponent at any level.
Damage LabLaning matchupBuild LabARAM sheet
Senna build and runes (Bot, patch 26.20)
Item order
- Infinity Edge
- Berserker's Greaves
- Bloodthirster
- Trinity Force
- Death's Dance
- Lord Dominik's Regards
Start: Doran's Blade, Health Potion
Situational: —
Rune page
Precision · keystone Press the Attack
Absorb Life, Legend: Alacrity, Coup de Grace
Secondary: Cheap Shot, Sixth Sense
Summoners: Flash, Ignite · Skill order: Q > W > E
Senna is classified AD from its ability scalings; itemization computed from Infinity Edge + current-patch item stats. Win-rate shown is an estimate and does not drive the build.
Senna base stats by level
| Level | Health | Attack damage | Armor | Magic resist | Attack speed |
|---|---|---|---|---|---|
| Level 1 | 530 | 50.0 | 25.0 | 33.0 | 0.625 |
| Level 6 | 882 | 50.0 | 40.8 | 37.3 | 0.689 |
| Level 11 | 1,311 | 50.0 | 60.1 | 42.7 | 0.768 |
| Level 18 | 2,043 | 50.0 | 93.0 | 51.7 | 0.901 |
Growth follows Riot's per-level curve: value = base + growth × (n−1) × (0.7025 + 0.0175 × (n−1)).
Senna ability damage per rank
Q — Piercing Darkness physical
| Rank | R1 | R2 | R3 | R4 | R5 |
|---|---|---|---|---|---|
| Base damage | 30 | 60 | 90 | 120 | 150 |
| Cooldown (s) | 15.0 | 15.0 | 15.0 | 15.0 | 15.0 |
Scaling: 40/40/40/40/40% bonus AD.
Senna Q damage by champion level (own stats, no items)
| Level | Rank | Raw damage | Cooldown |
|---|---|---|---|
| Level 1 | rank 1 | 30.0 | 15.0s |
| Level 3 | rank 2 | 60.0 | 15.0s |
| Level 6 | rank 3 | 90.0 | 15.0s |
| Level 9 | rank 5 | 150.0 | 15.0s |
| Level 11 | rank 5 | 150.0 | 15.0s |
| Level 13 | rank 5 | 150.0 | 15.0s |
| Level 16 | rank 5 | 150.0 | 15.0s |
| Level 18 | rank 5 | 150.0 | 15.0s |
W — Last Embrace physical
| Rank | R1 | R2 | R3 | R4 | R5 |
|---|---|---|---|---|---|
| Base damage | 70 | 115 | 160 | 205 | 250 |
| Cooldown (s) | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 |
Scaling: 70/70/70/70/70% bonus AD.
Senna W damage by champion level (own stats, no items)
| Level | Rank | Raw damage | Cooldown |
|---|---|---|---|
| Level 1 | rank 1 | 70.0 | 11.0s |
| Level 3 | rank 2 | 115.0 | 11.0s |
| Level 6 | rank 3 | 160.0 | 11.0s |
| Level 9 | rank 5 | 250.0 | 11.0s |
| Level 11 | rank 5 | 250.0 | 11.0s |
| Level 13 | rank 5 | 250.0 | 11.0s |
| Level 16 | rank 5 | 250.0 | 11.0s |
| Level 18 | rank 5 | 250.0 | 11.0s |
E — Curse of the Black Mist none
| Rank | R1 | R2 | R3 | R4 | R5 |
|---|---|---|---|---|---|
| Base damage | no direct damage | ||||
| Cooldown (s) | 26.0 | 24.5 | 23.0 | 21.5 | 20.0 |
Scaling: no scaling.
R — Dawning Shadow physical
| Rank | R1 | R2 | R3 |
|---|---|---|---|
| Base damage | 250 | 400 | 550 |
| Cooldown (s) | 140.0 | 120.0 | 100.0 |
Scaling: 70/70/70% AP, 115/115/115% bonus AD.
Senna R damage by champion level (own stats, no items)
| Level | Rank | Raw damage | Cooldown |
|---|---|---|---|
| Level 6 | rank 1 | 250.0 | 140.0s |
| Level 9 | rank 1 | 250.0 | 140.0s |
| Level 11 | rank 2 | 400.0 | 120.0s |
| Level 13 | rank 2 | 400.0 | 120.0s |
| Level 16 | rank 3 | 550.0 | 100.0s |
| Level 18 | rank 3 | 550.0 | 100.0s |
Senna ARAM buffs & nerfs (Howling Abyss balance modifiers)
Senna deals -8% damage and takes +5% damage on the Howling Abyss.
| ARAM modifier | Value |
|---|---|
| Damage dealt | -8% |
| Damage taken | +5% |
| Healing | — |
| Shielding | — |
| Attack speed | — |
| Ability haste | — |
| Tenacity | — |
| Energy regen | — |
ARAM also starts champions at level 3 with 1,400 gold. The ARAM sheet applies these modifiers to every stat and ability side by side with Summoner's Rift.
Frequently asked
What is the best Senna build on patch 26.20?
RiftLab's stat-driven build for Senna Bot is Infinity Edge, Berserker's Greaves, Bloodthirster, Trinity Force, Death's Dance, Lord Dominik's Regards, with Press the Attack as the keystone. It is computed from the champion's damage profile and the opponent's resists, not from win-rate scraping.
Does Senna have ARAM modifiers?
Yes. On ARAM Senna deals -8% damage and takes +5% damage.
How much damage does Senna's Piercing Darkness do?
Senna's Q (Piercing Darkness) has a base damage of 30/60/90/120/150 across its ranks and scales with 40/40/40/40/40% bonus AD. Before the target's resistances; use the Damage Lab for the mitigated number against a specific opponent.
How much health does Senna have at level 18?
Senna has 2,043 base health, 93.0 armor and 51.7 magic resist at level 18 with no items, on patch 26.20.
Data: Riot Data Dragon 26.20, Meraki Analytics, LoL Wiki ARAM table. Builds are stat-driven recommendations from RiftLab's optimizer, not win-rate aggregates.