
Battlemage · magic (AP) damage
Later items show higher win rates partly because games that last that long are usually already being won. Compare items within a slot, not across slots.
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching

Based on 12,266 games · 49.6% win rate · High elo · patch 26.20.
Later items show higher win rates partly because games that last that long are usually already being won. Compare items within a slot, not across slots.
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching

Based on 4,691 games · 51.5% win rate · High elo · patch 26.20.
Later items show higher win rates partly because games that last that long are usually already being won. Compare items within a slot, not across slots.
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching

Based on 500 games · 50.6% win rate · High elo · patch 26.20.

Viktor gains Hex Fragments whenever he kills an enemy. With every 100 Hex Fragments he obtains, Viktor permanently augments an active ability. After upgrading all of his basic abilities, he can gather 100 Hex Fragments to augment his ultimate ability.

Viktor blasts an enemy unit with magic damage, which grants him a shield and empowers his next basic attack. Augment: Siphon Power's shield is increased by 60% and Viktor gains bonus move speed after casting the Ability.

Viktor conjures a heavy gravitational field that slows enemies caught within its radius. Enemies who stay in the field for too long become stunned. Augment: Viktor's spells apply a slow to enemies.

Viktor uses his biomechanical arm to fire a Hextech Ray that cuts across the field in a line, dealing damage to all enemies in its path. Augment: An explosion follows in the Hextech Ray's wake, dealing magic damage.

Viktor conjures an Arcane Storm on the field, dealing magic damage and interrupting enemy channels. The storm periodically does magic damage to all nearby enemies and can be redirected by Viktor. Augment: The Arcane Storm moves 25% faster, and whenever champions die after taking damage from it, the storm grows and increases in its duration.
W Gravity FieldSlowignores tenacityFROM
W Gravity FieldTheir hard CC is tenacity-reducible, so Mercury's Treads and tenacity items shorten their lockdown.
Tap or hover a crowd-control type to see which ability it comes from.