
Vanguard · 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.
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
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

Based on 4,396 games · 53.0% 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.
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching
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

Based on 746 games · 49.2% win rate · High elo · patch 26.20.

Amumu's basic attacks Curse his enemies, causing them to take bonus true damage from incoming magic damage.

Amumu tosses a sticky bandage at a target, stunning and damaging the target while he pulls himself to them.

Overcome by anguish, nearby enemies lose a percentage of their maximum Health each second and have their Curses refreshed.

Permanently reduces the physical damage Amumu would take. Amumu can unleash his rage, dealing damage to surrounding enemies. Each time Amumu is hit, the cooldown on Tantrum is reduced.

Amumu entangles surrounding enemy units in bandages, applying his Curse , damaging and stunning them.
Q Bandage Toss
R Curse of the Sad MummyRoottenacity helpsFROM
R Curse of the Sad MummyTheir 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.