
Diver · magic (AP) damage
Elise is a Diver that deals magic (AP) damage and brings stun. Their hard CC is tenacity-reducible, so Mercury's Treads and tenacity items shorten their lockdown. Below is Elise's highest-win-rate build from high-elo games; open the counter-build tool to tune it against your specific enemy team.

Human Form: When Elise's abilities hit an enemy, she gains a dormant Spiderling. Spider Form: Basic attacks deal bonus magic damage and restore health to Elise.

Human Form: Deals damage based upon how high the target's Health is. Spider Form: Lunges at an enemy and deals damage based upon how low their Health is.

Human Form: Releases a venom-gorged Spiderling that explodes when it nears a target. Spider Form: Elise and her Spiderlings gain Attack Speed.

Human Form: Stuns the first enemy unit hit and reveals them if they are not stealthed. Spider Form: Elise and her Spiderlings ascend into the air and then descend upon target enemy. After descending on an enemy target, Elise's bonus damage and healing from Spider Queen is increased.

Transforms into a menacing spider, reducing her attack range in exchange for Move Speed, new abilities, and a Spiderling swarm that will attack her foes.
E Cocoon / RappelHover a crowd-control type to see which ability it comes from.
Domination
Electrocute
Dark Harvest
Hail of Blades
Cheap Shot
Taste of Blood
Sudden Impact
Sixth Sense
Grisly Mementos
Deep Ward
Treasure Hunter
Relentless Hunter
Ultimate Hunter
Precision
Press the Attack
Lethal Tempo
Fleet Footwork
Conqueror
Absorb Life
Triumph
Presence of Mind
Legend: Alacrity
Legend: Haste
Legend: Bloodline
Coup de Grace
Cut Down
Last Stand

Based on 3545 games · 51.3% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
Domination
Electrocute
Dark Harvest
Hail of Blades
Cheap Shot
Taste of Blood
Sudden Impact
Sixth Sense
Grisly Mementos
Deep Ward
Treasure Hunter
Relentless Hunter
Ultimate Hunter
Precision
Press the Attack
Lethal Tempo
Fleet Footwork
Conqueror
Absorb Life
Triumph
Presence of Mind
Legend: Alacrity
Legend: Haste
Legend: Bloodline
Coup de Grace
Cut Down
Last Stand

Based on 1854 games · 50.9% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
Precision
Press the Attack
Lethal Tempo
Fleet Footwork
Conqueror
Absorb Life
Triumph
Presence of Mind
Legend: Alacrity
Legend: Haste
Legend: Bloodline
Coup de Grace
Cut Down
Last Stand
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm

Based on 291 games · 51.5% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
Domination
Electrocute
Dark Harvest
Hail of Blades
Cheap Shot
Taste of Blood
Sudden Impact
Sixth Sense
Grisly Mementos
Deep Ward
Treasure Hunter
Relentless Hunter
Ultimate Hunter
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm

Based on 58 games · 48.3% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.