Imperial Mandate

Stats

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

Effects

• Control (unique): Abilities with immobilize effects have their cooldown reduced equivalent to 20 ability haste.
• Command (unique): Immobilize an enemy champion marks them as Vulnerable for 4 seconds, increasing the damage they take from all sources by 7%. Subsequent immobilizes against a target extend the duration of the effect.³

Arena changes

• Ability haste changed to 35.⁴

• Consider building Imperial Mandate alongside Fimbulwinter when tailoring a build around an early augment; it might not be worth considering when obtained late without those items.⁵

• Since patch 26.12, abilities that do not crowd control but swap to crowd control spells no longer gain ability haste from Imperial Mandate's Control passive.⁶
• In the May 2026 PBE version, Nami's E could no longer use Imperial Mandate. Evelynn's E, Lulu's E, Rell's E and Syndra's W also no longer benefited from its bonus haste.⁷⁸

Earlier formats

• Imperial Mandate was an option for support builds alongside Redemption and Locket of the Iron Solari.¹⁰ 8x2 duos
• Trundle's Pillar slow could apply Imperial Mandate on every tick, repeatedly applying its control effect; it was uncertain whether this interaction still worked.¹¹ 8x2 duos