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Jayce
Guide · Top

Jayce Guide

the Defender of Tomorrow
Fighter
Marksman
Tier C Top

Jayce, the Defender of Tomorrow, is a fighter and marksman champion that is demanding to master. Across our 1555 analysed ranked games, Jayce is mostly played in Top (67% of its games), and more rarely in the Jungle (23%) and in Mid (11%), with a 50.6% win rate in that role: tier C among Top champions (#44 of 48, ranked by win rate). Jayce's damage is mostly physical (78%): armor is the best defensive answer against this champion. Win rate varies with game length: 52.3% in short games (under 25 min, 369 games) versus 44.7% in long games (over 35 min).

Updated Oct 10 2026 · Patch 26.22

Average KDA
5.6 / 6.3 / 5.6
ratio 1.8
Damage / min
895
CS / min
7.9
Gold / min
435
Kill participation
38%
Vision / min
0.95

Averages measured over 1037 Top games played with Jayce, from our ranked Solo/Duo data collection.

How to play and combo preview

Written guide · based on the official ability texts

Jayce switches between two forms: Hammer (melee) and Cannon (ranged), gaining movement speed with each switch. Each form has its own abilities: in Hammer he leaps, damages and knocks back; in Cannon he fires a long-range orb and speeds up his attacks. His strength comes from mastering the weapon switch at the right time.

Harassment in Cannon form
Thundering Blow / Acceleration Gate E To the Skies! / Shock Blast Q Lightning Field / Hyper Charge W AA AA

When: You are at range and the enemy is in line.

The Acceleration Gate increases the speed, range and damage of a Shock Blast passing through it. Hyper Charge raises your attack speed to its maximum for several attacks.

The Hammer dive
Mercury Cannon / Mercury Hammer R To the Skies! / Shock Blast Q Lightning Field / Hyper Charge W Thundering Blow / Acceleration Gate E AA AA

When: An enemy is within leap range.

After the ultimate, To the Skies! leaps you onto the enemy, damages and slows them; Lightning Field and Thundering Blow (magic damage, knockback) complete.

See all 3 Jayce combos: key order, when to cast them, cooldowns →

Laning phase

The Cannon lets you harass safely with Shock Blast; switch to Hammer to dive with To the Skies! when the enemy is within burst range. Switching weapons gives a brief movement speed boost: use it to get away or close in.

Common mistakes

Riot's official tips for playing Jayce

Build, runes and summoner spells

The most-played core build is Youmuu's Ghostblade, Serylda's Grudge, and Voltaic Cyclosword (67 games, 58.2% win rate).

67 games · 58.2%
42 games · 45.2%
32 games · 43.8%

Skill order

Max order : Q > W > E49.0% · 96 games
123456789101112131415
QQ●●●●●●
WW●●●●●●
EE●●●
RR

The order shows which abilities reach rank 5 first; the grid shows the most-played level-up sequence with that order (measured over 104 games).

Starting items

First completed items, in order

44 games · 43.2%

Laning phase (averages)

At 10 min: 3809 gold, 79 CS, 4853 XP. At 15 min: 5953 gold, 121 CS, 8235 XP.

Summoner spells

FlashTeleport Flash + Teleport51.7% · 660 games
FlashIgnite Flash + Ignite48.9% · 348 games
ExhaustFlash Exhaust + Flash50.0% · 28 games

Most-played runes

Stormraider's Surge
Stormraider's Surge + Inspiration
51.5% · 390 games
Primary tree · Sorcery
Manaflow Band86%
Absolute Focus70%
Scorch52%
Secondary tree · Inspiration
Triple Tonic54%
Cosmic Insight51%
Shards
Adaptive force98%
Adaptive force99%
Health62%
Grasp of the Undying
Grasp of the Undying + Inspiration
48.5% · 305 games
Primary tree · Resolve
Demolish99%
Bone Plating68%
Overgrowth75%
Secondary tree · Inspiration
Triple Tonic72%
Cosmic Insight70%
Shards
Adaptive force96%
Adaptive force100%
Health77%
Conqueror
Conqueror + Inspiration
56.4% · 117 games
Primary tree · Precision
Presence of Mind92%
Legend: Alacrity85%
Last Stand63%
Secondary tree · Inspiration
Biscuit Delivery46%
Triple Tonic46%
Shards
Adaptive force97%
Adaptive force100%
Health50%

For each row, the most picked rune among the games played with this page (share of games in brackets).

Which items to build against the enemy team?

We sort every game by the enemy team's damage. These are Jayce's completed items and their win rate in each situation; "▲" marks an item that does at least 3 points better than its usual win rate.

Mostly magic-damage enemy team54.5% · 299 games
At least 50% of their damage is magic
Serpent's Fang 59.2% ▲
Eclipse 56.4% ▲
Edge of Night 58.3% ▲

The item that stands out most is Serylda's Grudge: 64.4% win rate, +12 points versus its usual win rate.

Mostly physical-damage enemy team52.1% · 267 games
Less than 35% of their damage is magic

The item that stands out most is Black Cleaver: 69.2% win rate, +19 points versus its usual win rate.

Balanced enemy team47.3% · 471 games
Mixed physical and magic damage

No item clearly stands out in this situation: the usual build remains the reference.

Counters and matchups

Who counters Jayce in Top

Malphite Jayce: 33.3%27 games

Malphite has the edge in 67% of the 27 Top duels against Jayce. See the Malphite guide.

Olaf Jayce: 34.3%35 games

Olaf has the edge in 66% of the 35 Top duels against Jayce. See the Olaf guide.

Yasuo Jayce: 35.3%17 games

Yasuo has the edge in 65% of the 17 Top duels against Jayce. See the Yasuo guide.

Gragas Jayce: 38.1%21 games

Gragas has the edge in 62% of the 21 Top duels against Jayce. See the Gragas guide.

Gangplank Jayce: 38.9%18 games

Gangplank has the edge in 61% of the 18 Top duels against Jayce. See the Gangplank guide.

Who Jayce is strong against

Sion76.5% · 17 games
Ambessa63.2% · 19 games
Irelia63.2% · 19 games
Camille61.9% · 21 games
Yone47.8% · 23 games

How to play against Jayce

Riot's official tips.

Win rates measured over direct same-role duels; only matchups with more than 15 games are listed. See all of Jayce's matchups.

Jayce Top: what our games say

Laning phase against the Top average

MeasureJayceTop averageGap
Gold at 10 min38093580+229
CS at 10 min7971+8
XP at 10 min48534754+99
Gold at 15 min59535655+298
CS at 15 min121111+9
XP at 15 min82358297−63

Measured over 104 Jayce games with a timeline; the average covers 82 champions played Top in our ranked games.

Win rate by game length

short under 25 min52.3 %369 games
medium-length 25 to 35 min50.7 %554 games
long over 35 min44.7 %114 games

Best result: short (under 25 min). Only groups of at least 30 games are shown. A gap of several points shows the phase where the champion is the most reliable.

Jayce in another role

RoleGamesWin rateCS/minGold/minMost-built items
Jungle35250.3 %7.5512Voltaic CycloswordBastionbreakerYoumuu's Ghostblade
Mid16645.2 %8.0450Youmuu's GhostbladeVoltaic CycloswordSerylda's Grudge

Roles where we have at least 40 Jayce games.

Abilities

Hextech Capacitor
PassiveHextech Capacitor
When Jayce swaps weapons he gains Move Speed for a short duration.
To the Skies! / Shock Blast
QTo the Skies! / Shock Blast
Hammer Stance: Leaps to an enemy dealing physical damage and slowing enemies.

Cannon Stance: Fires an orb of electricity that detonates upon hitting an enemy (or reaching the end of its path) dealing physical damage to all enemies hit.
Lightning Field / Hyper Charge
WLightning Field / Hyper Charge
Hammer Stance: Passive: Restores Mana per strike. Active: Creates a field of lightning damaging nearby enemies for several seconds.

Cannon Stance: Gains a burst of energy, increasing Attack Speed to maximum for several attacks.
Thundering Blow / Acceleration Gate
EThundering Blow / Acceleration Gate
Hammer Stance: Deals magic damage to an enemy and knocks them back a short distance.

Cannon Stance: Deploys an Acceleration Gate increasing the Move Speed of all allied champions who pass through it. If Shock Blast is fired through the gate the missile speed, range, and damage will increase.
Mercury Cannon / Mercury Hammer
RMercury Cannon / Mercury Hammer
Hammer Stance: Transforms the Mercury Hammer into the Mercury Cannon gaining new abilities and increased range. The first attack in this form reduces the target's Armor and Magic Resist.

Cannon Stance: Transforms the Mercury Cannon into the Mercury Hammer gaining new abilities and increasing Armor and Magic Resist. The first attack in this form deals additional magic damage.

Other Top champions to know

Most played

Yone47.8 %Camille50.1 %Jax54.9 %Ambessa47.7 %Malphite46.2 %Renekton51.1 %Garen50.6 %Nasus46.1 %

Strongest (at least 100 games)

Ornn59.1 %Aurora54.8 %Urgot54.6 %Yasuo54.2 %Sylas54.2 %Warwick53.6 %Cho'Gath53.2 %Anivia52.8 %

Frequently asked questions

What is the best build for Jayce?

The most-played core build is Youmuu's Ghostblade, Serylda's Grudge, and Voltaic Cyclosword (67 games, 58.2% win rate).

Who counters Jayce?

Jayce's toughest matchups in Top are Malphite (33.3% win rate over 27 games), Olaf (34.3% win rate over 35 games), and Yasuo (35.3% win rate over 17 games).

What are Jayce's best matchups?

Jayce posts its best win rates against Sion (76.5%), Ambessa (63.2%), and Irelia (63.2%).

What game length suits Jayce best?

Win rate varies with game length: 52.3% in short games (under 25 min, 369 games) versus 44.7% in long games (over 35 min).

Which runes should I play on Jayce?

The most-played rune page uses Stormraider's Surge with the Inspiration secondary tree (390 games, 51.5% win rate).

Full Jayce page · League of Legends tier list · All champion guides