Welcome to this in-depth guide on Senna, the Redeemer, in League of Legends. As a versatile and deadly marksman, Senna can be a game-changer when played to her full potential. This guide aims to provide you with a solid understanding of Senna's abilities, itemization, runes, and strategies to help you dominate the Rift.

I. Understanding Senna's Abilities:

Passive - Absolution (Curse of the Black Mist):

Senna's passive provides extra range and critical strike chance as she collects Mist from fallen enemies.
Learn to optimize positioning to take advantage of extended range during trades and team fights.
Aim to have 4 souls a minute at any time, any deviation from this rule of thumb should indicate if the game is going good/bad.

Q - Piercing Darkness:

Senna's main source of sustain and poke.
Prioritize leveling this ability for increased healing and damage.
Use Piercing Darkness strategically to harass enemies and heal allies during skirmishes.

W - Last Embrace:

A powerful crowd control ability with a delayed root effect.
Master the timing of Last Embrace to catch enemies off guard.
Use Last Embrace to set up plays, secure kills, or peel for your teammates.

E - Curse of the Black Mist:

Provides stealth and movement speed to Senna and her allies.
Use Curse of the Black Mist for vision control, repositioning, and escaping dangerous situations.
Coordinate with your team to maximize the effectiveness of this ability during rotations and engagements.

R - Dawning Shadow:

Senna's ultimate ability, capable of dealing massive damage across the map.
Aim to use Dawning Shadow in team fights to initiate or finish off low-health enemies.
Pay attention to the map and look for opportunities to snipe enemies with your ultimate.

Passive - Absolution (Curse of the Black Mist):

Senna's passive provides extra range and critical strike chance as she collects Mist from fallen enemies.
Learn to optimize positioning to take advantage of extended range during trades and team fights.
Aim for 4 souls a minute as a benchmark, anything above or below this should indicate your preformance in said game.

Q - Piercing Darkness:

Senna's main source of sustain and poke.
Prioritize leveling this ability for increased healing and damage.
Use Piercing Darkness strategically to harass enemies and heal allies during skirmishes.

W - Last Embrace:

A powerful crowd control ability with a delayed root effect.
Master the timing of Last Embrace to catch enemies off guard.
Use Last Embrace to set up plays, secure kills, or peel for your teammates.

E - Curse of the Black Mist:

Provides stealth and movement speed to Senna and her allies.
Use Curse of the Black Mist for vision control, repositioning, and escaping dangerous situations.
Coordinate with your team to maximize the effectiveness of this ability during rotations and engagements.

R - Dawning Shadow:

Senna's ultimate ability, capable of dealing massive damage across the map.
Aim to use Dawning Shadow in team fights to initiate or finish off low-health enemies.
Pay attention to the map and look for opportunities to snipe enemies with your ultimate.

Farming and Trading:

Prioritize last-hitting minions for Mist stacks.
Use Piercing Darkness to poke enemies and sustain in lane.

Map Awareness:

Keep an eye on the minimap to identify opportunities for your ultimate, Dawning Shadow.
Use Curse of the Black Mist to safely rotate and gain vision.

Team Fighting:

Position yourself to maximize the impact of your extended range.
Coordinate with your team to chain Last Embrace with other crowd control abilities.

Late Game:

Focus on safely dealing damage from a distance during team fights.
Use Dawning Shadow to turn the tide of battles or secure objectives.
By mastering Senna's kit, itemization, and strategic considerations, you'll be well on your way to becoming a formidable force on the Rift. Good luck, and may your gun always find its mark!