Senna Guide

Key Insights
Each
Senna
P
stack grants Senna 0.75 AD, and for every 20, she gains 20 attack range and 15% Crit chance. When she reaches 100%, 35% of the excess is converted to lifesteal.
Senna
Q
affects everything caught in its AoE and slows enemies by 20% for 2 seconds. Auto attacks reduce its cooldown by 1 second.
If an enemy hit by
Senna
W
dies before it procs, the AoE root instantly procs.
Senna
R
grants vision of where it travels and collects
Senna
P
's Mist Wraiths.
Strengths
Excels at short trades with
Senna
P
's % current HP damage.
Controls objectives well with her high attack range, letting her poke and push enemies away with
Senna
P
procs from auto +
Senna
Q
/
Senna
W
.
Has good gank setup with
Senna
W
and can escort allies into fights with
Senna
E
.
Can swing fights across the map with a well-timed
Senna
R
.
Synergizes well with
Kraken Slayer
,
Manamune
,
Guinsoo's Rageblade
,
Wit's End
, and
Rapid Firecannon
. Can opt for
Divine Sunderer
,
Trinity Force
,
Eclipse
, or
Moonstone Renewer
when needed.
Weaknesses
Her damage is not consistent. She deals high upfront damage, but tapers off in fights.
Immobile, leaving her vulnerable to ganks.
Senna
E
has a high cooldown of 26 seconds at rank 1. Once used, she can be punished.