Description
Briefly lifts the target into the air, interrupting their action. A unit that is knocked up cannot act, move, or cast until it lands.
Listed in: Debuffs
Champions (1)
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Azure Shockwave Gain 530 / 734 / 2421 Shield for 4 seconds. Slam the ground, sending a fissure in the direction of the most enemies. Enemies hit are briefly knocked up, take 100 / 150 / 3500 magic damage, and are Mana Reaved for 10. Blue Buff: Each time Sentinel casts, allies gain 2 Mana Regen. Mana Reave: Increase the Mana cost of the next Ability cast.
What counters Knock Up
What Knock Up counters
Frequently asked questions
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What is Knock Up in TFT?
Knock Up makes the target airborne, and the TFT wiki spells out what that means: "For the duration, the unit is also stunned and unable to move, declare attacks, or cast their Special Ability." So a knocked-up unit is locked out of the same three actions a stun locks — movement, autos, and ability cast — with the added effect that it is briefly lifted off its hex. The unit is still on the board, still selectable as a target, and still takes full damage; airborne is a disable, not an immunity layer.
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How long does a knock-up usually last?
Durations are short and source-specific — most TFT knock-ups land in the ~1.0-1.75 second range, set by the ability's tooltip rather than a global rule, and the value is tuned per patch. Balance patches retune them: a knock-up that lands at 1.75s today can be cut to 1.5s in the next one, which is the kind of swing you should expect. The practical takeaway: read the ability tooltip for the exact number; never assume a fixed "knock-up duration" exists across the game.
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Does Tenacity reduce knock-up duration?
No. Tenacity reduces stuns, roots, slows, and most other crowd control, but airborne is on the small exclusion list. The general wiki is explicit: "The duration of airborne and its forced movement execution time is unaffected by Tenacity." That carries over into TFT — knock-ups always run their full tooltip duration regardless of how much Tenacity the target has stacked. This is the practical reason chained knock-ups feel "heavier" than equal-duration stuns, and why Tenacity items are a soft answer to stun-heavy boards but not to knock-up-heavy ones.
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If a unit gets knocked up while already airborne, do the durations stack?
No — airborne effects don't sum. The wiki's general rule is that "the most recent move block will overrule any previous move blocks," and the accompanying forced movement of a fresh knock-up overrides any previous airborne or dash on the same target. In practice, a new knock-up landing on a target that is already in the air replaces whatever was running rather than extending it; chaining knock-ups only buys more total disabled time when each one lands just as the previous airborne is ending, not while it's still active.
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What's the difference between Knock Up, Knock Back, Knock Aside, and Pull?
All four are sub-types of airborne — same disable layer (movement, attacks, and ability cast all locked), different forced-movement vector. Knock Up lifts the target on the spot. Knock Back shoves the target away from the source. Knock Aside pushes the target perpendicular to the cast direction. Pull drags the target toward the source. Because they share the airborne tag, every one of them is equally immune to Tenacity reduction and equally cleansed by CC-immune effects — the geometric difference matters for board positioning, not for the disable strength itself.
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Does CC immunity prevent knock-ups?
Yes. A unit with crowd-control immunity ignores incoming knock-ups entirely — the airborne is never applied, no duration ticks, and no forced movement triggers. Immunity prevents application; it does not strip an already-active knock-up. Because most CC-immune sources in TFT are time-windowed (e.g. a fixed early-combat shield), a carry is only protected inside that window — once it expires, late-fight knock-ups land normally. CC Immune is also distinct from Untargetable (still hittable, just immune to the disable layer) and Invulnerable (takes no damage at all).
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Do units gain mana while knocked up?
Same rule as stun: they can still gain mana from taking damage, but not from autoing because they can't declare attacks while airborne. Knock-up applies the same "stunned" tag for its airborne duration, which blocks attacking and casting but not the tank-style damage-to-mana income — so knocking up a tank doesn't stop their mana fill from incoming damage; it just prevents them from spending it. The instant the airborne ends, a full-mana unit casts immediately.
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Are there augments or traits that grant knock-up-specific immunity, separate from full CC immunity?
Yes — the game ships occasional effects that protect specifically against knock-ups (or against being moved at all) without making the unit fully CC-immune; the canonical pattern is an augment or trait line that reads "cannot be knocked up" or "immune to forced movement." These are distinct from a full CC-immune buff: a knock-up-only-immune unit can still be stunned, rooted, or silenced normally, it just can't be airborne'd. Read the exact tooltip — "immune to crowd control," "immune to knock-ups," and "cannot be moved" are three different protections with three different coverage areas.