Decapitator

Stats

Values as the League of Legends Wiki's item data lists them, for every mode; the data doesn't state their units.

Effects

• Anticipation (unique): Basic attacks and basic ability casts generate 1 and 2 stacks of Anticipation for the rest of the round, respectively, stacking up to 40 times. For each stack, increase your ultimate ability's damage by 3% and gain 2 ultimate haste, up to 120% increased ultimate damage and 80 ultimate haste. Stacks are reset every round and between each phase in a round.³

• Using Oranges twice before the round starts can generate 8 Decapitator stacks on AP Gangplank.⁵
• Decapitator with ADAPt and Jeweled Gauntlet was used on Cho'Gath; on Tahm Kench, it was paired with Glass Cannon, Raid Boss, Wooglet's Witchcap and Chain Lightning.⁶⁷

• Decapitator's ultimate haste does not reduce Ultimate Revolution's cooldown.⁸
• Ability autocasts count as spell casts for Decapitator.⁹
• Decapitator can work well with Katarina, and it is a good choice on Katarina, Darius, Cho'Gath and Axiom Arc Jhin.¹⁰¹¹
• Decapitator can work well on certain champions and builds, including Cho'Gath with Jeweled Gauntlet and high ability power.¹²¹³¹⁴
• Decapitator can be a good choice for Nunu with ADAPt, Augmented Power and Giant Slayer.¹⁵
• Killing Time is coded as an ultimate, so its damage is increased by Decapitator.¹⁶
• Yunara's empowered W counts as ultimate damage.^17181920

Earlier formats

• Since patch 25.07, Decapitator's ultimate visual effect displays between rounds.²³ 8x2 duos
• Decapitator increased ultimate damage but did not reduce cooldown.²⁴ 8x2 duos
• Firefox, Axe and similar effects counted as casts for Decapitator.²⁵ 8x2 duos
• Jhin's W benefited from Decapitator.²⁶ 8x2 duos
• Ezreal's True Shot benefited from Decapitator.²⁷ 8x2 duos
• Yunara's ultimate-form W benefited from ultimate ability effects, including Decapitator.²⁸ 8x2 duos
• Maokai's Q could be used in a combo with Decapitator.²⁹ 8x2 duos
• Decapitator with Jeweled Gauntlet was a Karthus build.³⁰ 8x2 duos
• Decapitator with Jeweled Gauntlet was a build for Ashe's ultimate and AP Tristana.³¹³² 8x2 duos
• Decapitator or Sword of the Divine with Axiom Arc and Infinity Edge was a build for Akshan's ultimate.³³ 8x2 duos
• Cho'Gath and Alistar were used with Decapitator to build stacks and deal damage.³⁴³⁵ 8x2 duos
• Statikk Shiv, Hextech Gunblade, Blade of the Ruined King, Kraken Slayer and Hullbreaker with Decapitator and Twilight's Edge were a build for AD Katarina's R.³⁶ 8x2 duos
• Decapitator with Jeweled Gauntlet or Ultimate Revolution was a Darius build.³⁷ 8x2 duos