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By GamGem ResearchLast updated 18 Oct 2026

Zac Build, Runes and Counters — Jungle and Top · Patch 26.20

the Secret Weapon

Patch 26.20 · Stats from the 26.18 Master+ sample (2,115 games).

Zac, the Secret Weapon, launches himself across walls with Elastic Slingshot and sheds pieces of himself he can pick up to heal through Cell Division. Most counted Master+ Zacs were junglers and the rest went Top, on Conqueror or Aftershock, and his most-bought path is an ability-power tank one: Hextech Rocketbelt into Sunfire Aegis. Qiyana and Viego beat him most often.

TankFighter

Patch 26.18 · Jungle · Ranked Solo/Duo · Master+ · EUW · KR · NA · 2,115 games · Preview sample

Role snapshot (Jungle)

BTier
Win Rate
50.4%
Pick Rate
3.2%
Ban Rate
0.7%

2,115

Games

High

Confidence

Win rate by lane

  • Jungle49.9% · 1,308 games
  • Top51.8% · 461 games · small sample

Most common path

360 games

55.0%Win Rate

Start
FlashSmite

Other first item

25 games

44.0%Win Rate

Start
FlashIgnite

Runes

Patch 26.18

This exact page: taken in 17.2% of games·49.5% win rate over 364 games.

Primary

Precision

Conqueror

Gain stacks of adaptive force when attacking enemy champions. After reaching 12 stacks, heal for a portion of damage you deal to champions.

Triumph

Takedowns restore 5% of your missing health and grant an additional 20 gold.

Legend: Haste

Takedowns on enemies grant permanent Basic Ability Haste.

Last Stand

Deal more damage to champions while you are low on health.

Secondary

Inspiration

Magical Footwear

You get free boots at 12 min but you cannot buy boots before then. Each takedown you get makes your boots come 45s sooner.

Cosmic Insight

+18 Summoner Spell Haste+10 Item Haste

Shards

  • Ability Haste
  • Adaptive Force
  • Health Scaling

Other keystones taken

  • Aftershock27.6% taken · 51.2% win584 games
  • Grasp of the Undying14.5% taken · 51.3% win306 games
  • Fleet Footwork0.8% taken · 41.2% win17 games

Tree pairs

  • Precision + Inspiration36.4% taken · 50.1% win769 games
  • Resolve + Precision33.8% taken · 49.7% win714 games
  • Precision + Resolve18.7% taken · 48.6% win395 games

Skill Order

Which ability to max first, and the level each point goes in — Zac's most common path.

Q

Stretching Strikes

Zac stretches an arm, grabbing an enemy.

Cooldown 14/12.5/11/9.5/8s
W

Unstable Matter

Zac explodes outward towards nearby enemies, dealing a percentage of their maximum health as magic damage.

Cooldown 5s
E

Elastic Slingshot

Zac attaches his arms to the ground and stretches back, launching himself forward.

Cooldown 21/18/15/12/9s
R

Let's Bounce!

Zac bounces four times, knocking up enemies hit and slowing them.

Cooldown 120/105/90s

Max Order

EWQ

Max E first, then W, then Q. Take R whenever available (6 / 11 / 16).

Level-up Order

  • Q
  • W
  • E
  • R
Ability123456789101112131415161718
QStretching StrikesQQQQQ
WUnstable MatterWWWWW
EElastic SlingshotEEEEE
RLet's Bounce!RRR

Matchup map (Jungle)

How Zac performs against enemy jungle laners

Levels 1 – 18 · Master+40%60%Zac's win rate
≥ 60%Very favorable
55 – 60%Favorable
50 – 55%Even
45 – 50%Unfavorable
40 – 45%Hard
< 40%Very hard

Conditional build matrix

Recommended items by enemy team composition

Master+ · Patch 26.18
Mythic / CoreFirst major item
Core 2Second item
Core 3Third item
BootsBoot slot
SituationalPick as needed

Scaling — minute 10–30

ZacJungle average

Gold

102030

Damage to champions

102030

CS

102030

Counter plan — how to beat Zac

  • Build percentage damage — flat penetration falls off against the stats it stacks

  • Avoid extended fights — its sustain grows with every trade it survives

  • Punish the cooldown — Zac is exposed while its rotation is down

  • Ward the flank — vision is what turns its best opening into a worse one

  • Respect the spike — Riot rates the kit 8/10, so a practised player gets more out of it than the average

Ability details

  • P

    Cell Division

    Each time Zac hits an enemy with an ability, he sheds a chunk of himself that can be reabsorbed to restore Health. Upon taking fatal damage, Zac splits into 4 bloblets that attempt to recombine. If any bloblets remain, he will revive with an amount of Health depending on the Health of the surviving bloblets. Each bloblet has a percentage of Zac's maximum Health, Armor and Magic Resistance. This ability has a 5 minute cooldown.

    Passive — never cast

  • Q

    Stretching Strikes

    Zac stretches an arm, grabbing an enemy. Attacking a different enemy will cause him to throw both targets towards each other.

    Cooldown 14/12.5/11/9.5/8sRange 800

  • W

    Unstable Matter

    Zac explodes outward towards nearby enemies, dealing a percentage of their maximum health as magic damage.

    Cooldown 5sRange 350

  • E

    Elastic Slingshot

    Zac attaches his arms to the ground and stretches back, launching himself forward.

    Cooldown 21/18/15/12/9sRange 300

  • R

    Let's Bounce!

    Zac bounces four times, knocking up enemies hit and slowing them.

    Cooldown 120/105/90sRange 300

Zac balance history

Riot's notes from patch 25.S1.1 to 26.20 change Zac in 3 patches. The latest is patch 26.15, published 2026-07-28.

  1. Patch 26.152026-07-28

    Base Stats

    • Armor Growth4.7to5.2

    EElastic Slingshot

    • Cooldown22 / 19 / 16 / 13 / 10to21 / 18 / 15 / 12 / 9
    Why, in Riot's words

    We believe that Zac brings unique gameplay and class diversity to the jungle. That said, his presence in the jungle has fallen quite a bit over the more recent patches. We believe giving him a bit more opportunity to execute on his distinct gank angles as well as a bit of durability in a team fight can help lift up our favorite secret weapon.

  2. Patch 26.42026-02-18

    QStretching Strikes

    • Damage per Hit40 / 55 / 70 / 85 / 100 (+ 30% AP) (+ 3% of Zac's maximum health)to60 / 90 / 120 / 150 / 180 (+ 30% AP) (+ 3% of Zac's bonus health)

    RLet's Bounce!

    • Initial Base Damage140 / 210 / 280to120 / 190 / 260
    • Maximum Base Damage350 / 525 / 700to300 / 475 / 650
    Why, in Riot's words

    Zac has been truly explosive in the new season, and while his ability to tank and engage are meant to be core strengths, he's also too lethal for a tank with deep backline target access. So to give everyone a fair shot against him, we're reducing his burst damage when it's slime time, especially against squishies.

  3. Patch 25.182025-09-09

    RLet's Bounce!

    • Going Ghost: Now grants Ghosting during ultimate.
    Why, in Riot's words

    Zac can rarely get stuck on units in his ultimate. The original Zac ultimate allowed him to pass through units to prevent this, so we're bringing that functionality back!

Zac skins (8)

Riot's data lists 8 looks for Zac with their own art, the base skin included and 34 chroma variants.

ARAM performance

EstimateB
Win Rate
49.3%
▲ 1.1%
Pick Rate
8.0%
▲ 0.3%
Ban Rate
1.9%
▲ 0.4%
Damage dealt
93.5%
Damage taken
102.6%
Healing
106.7%
Shielding
93.1%
Ability Haste
+15

Best ARAM build

Patch timeline

Riot’s notes

This champion’s win rate on each patch the preview sample spans, over its own games there. What actually changed each patch is in Riot’s own notes.

  1. 26.1950.5% over 647 games · small sample+0.1
  2. 26.1850.3% over 1,134 games0.0
  3. 26.1750.5% over 329 games · small sample—

Zac's base stats against all 173 champions

  • Zac's base health of 685 is the 3rd-highest of 173 champions on patch 26.20 (shared with 2 others).
  • Zac's base attack speed of 0.736 is the 3rd-highest of 173 champions on patch 26.20 (shared with 2 others).
StatZacRankMedian
Base health685=3rd620
Health per level109=38th104
Base armor33=52nd30
Armor per level5.2=3rd4.6
Base magic resist32=32nd32
Magic resist per level2.05=4th1.55
Base attack damage60=72nd59
Base attack speed0.736=3rd0.656
Attack speed per level1.6%=146th2.5%
Move speed340=37th335
Attack range175=87th175

Zac at level 1 and level 18

  • Zac reaches 2538 health at level 18 — 685 at level 1 plus 17 × 109, the 24th-highest of 173 champions on patch 26.20.
  • Zac reaches 121.4 armor at level 18 — 33 at level 1 plus 17 × 5.2, the 15th-highest of 173 champions on patch 26.20, shared with 1.
  • Zac reaches 66.85 magic resist at level 18 — 32 at level 1 plus 17 × 2.05, the 5th-highest of 173 champions on patch 26.20, shared with 69.
StatLevel 1Per levelLevel 18Rank at 18
Health685+109253824th of 173
Armor33+5.2121.4=15th of 173
Magic resist32+2.0566.85=5th of 173

Riot Data Dragon 16.20.1. Growth curve: League of Legends Wiki — Champion statistic.

Riot's tips for Zac

Playing Zac

  • Picking up goo chunks is very important to staying alive.
  • When Cell Division is ready, try to die in a position that makes it difficult for the enemy team to kill your bloblets.
  • Charging Elastic Slingshot from the fog of war will give opponents less time to react.

Playing against Zac

  • Zac heals from the goo that separates from him. You can crush the goo pieces by stepping on them.
  • Kill all of Zac's bloblets when he splits apart to stop him from reforming.
  • Silences, stuns, roots and knockups will all interrupt Zac when he is charging Elastic Slingshot.

Quick answers about Zac

How does Zac do against Qiyana?
Zac won 39.5% of 81 counted Master+ games against Qiyana. Qiyana is one of the opponents that beat Zac. A small sample — read it as a lean, not a rule.
How does Zac do against Viego?
Zac won 35.0% of 40 counted Master+ games against Viego. Viego is one of the opponents that beat Zac. A small sample — read it as a lean, not a rule.
How does Zac do against Lillia?
Zac won 44.7% of 38 counted Master+ games against Lillia. Lillia is one of the opponents that beat Zac. A small sample — read it as a lean, not a rule.
How does Zac do against Jarvan IV?
Zac won 45.2% of 42 counted Master+ games against Jarvan IV. Jarvan IV is one of the opponents that beat Zac. A small sample — read it as a lean, not a rule.
How does Zac do against Talon?
Zac won 45.9% of 61 counted Master+ games against Talon. Talon is one of the opponents that beat Zac. A small sample — read it as a lean, not a rule.
How does Zac do against Graves?
Zac won 57.1% of 63 counted Master+ games against Graves. It is a matchup Zac wins more often than not. A small sample — read it as a lean, not a rule.
How does Zac do against Kha'Zix?
Zac won 55.8% of 43 counted Master+ games against Kha'Zix. It is a matchup Zac wins more often than not. A small sample — read it as a lean, not a rule.
How does Zac do against Lee Sin?
Zac won 51.9% of 104 counted Master+ games against Lee Sin. It is close to even.
What class is Zac?
Riot classes Zac as Tank and Fighter. This site files the champion under Jungle.
How hard is Zac to play?
Riot rates Zac's difficulty 8 out of 10.
What resource does Zac use?
Zac's abilities cost no resource.
What is Zac's attack range?
175 units — the 60th-lowest of 173 champions on patch 26.20 (shared with 27 others).
What are Zac's abilities?
Passive — Cell Division, Q — Stretching Strikes, W — Unstable Matter, E — Elastic Slingshot and R — Let's Bounce!.
How many skins does Zac have?
Riot's data lists 8 skins with their own art, the base look included, plus 34 chroma variants.
How much health does Zac have at level 18?
2538 — 685 at level 1 plus 17 × 109 per level, Riot's own values, before items and runes.
What is Zac's ultimate cooldown?
Let's Bounce! (R): 120/105/90 seconds by rank, before ability haste, in Riot's Data Dragon 16.20.1.
When did Riot last change Zac?
Patch 26.15, published 28 July 2026 — the latest of 3 patches that change Zac in Riot's notes from 25.S1.1 to 26.20.

Zac at a glance

Zac, the Secret Weapon, is a Tank and Fighter champion in League of Legends. Riot rates the kit 8/10 for difficulty, 3/10 for attack, 7/10 for defense and 7/10 for magic. Zac spends no resource on abilities and has 8 skins with their own art. Zac's base health of 685 is the 3rd-highest of 173 champions on patch 26.20 (shared with 2 others). Zac's base attack speed of 0.736 is the 3rd-highest of 173 champions on patch 26.20 (shared with 2 others).

Attack3/10
Defense7/10
Magic7/10
Difficulty8/10

Zac's story

Zac is the product of a toxic spill that ran through a chemtech seam and pooled in an isolated cavern deep in Zaun's Sump. Despite such humble origins, Zac has grown from primordial ooze into a thinking being who dwells in the city's pipes, occasionally emerging to help those who cannot help themselves or to rebuild the broken infrastructure of Zaun.
— Riot Games, Data Dragon 16.20.1. League of Legends Universe

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Methodology

Data window
Preview sample — a one-time snapshot of 65,406 ranked games (Master+, EUW/KR/NA, patch 26.18), counted by GamGem while our Riot production key is under review. Figures will update daily once it is approved. Counted 26–27 Sept 2026; patches 26.18 (35,477) · 26.19 (18,580) · 26.17 (11,048) · 26.16 (293) · 26.15 (8); by server EUW 22,382 · KR 21,922 · NA 21,065 · EUNE 20 · TR 17. 642 games without a result — remakes ended by vote in their first minutes, and games recorded with no winner — were not counted.
Rank aggregation
Master, Grandmaster and Challenger, pooled — the three ladders the count read its players from. Splitting further leaves samples too small to separate a real effect from noise.
Role assignment
A champion is filed under every lane that holds at least a tenth of its counted games — the position the match itself reports, not the champion’s class. Its headline win rate is across all of them; each lane’s own win rate and games are counted too, and a lane’s tier list ranks by them.
Counters
The two champions in the same position on opposite teams, over that pairing’s own counted games — ranked on the edge pulled toward zero by its sample size, printed raw.
Minimum sample
None — no figure is hidden for being thin. Every rate prints its games, and the confidence band is its 95% margin: Very High within ±1.5 points, High ±2.5, Moderate ±3.1 (1,000 games), Low wider.
Why a build is not a cause
An item is counted when the match ENDS with it, so late items show long games and an item bought when already ahead shows games that were being won. Correlation is what a rate can show; it is not evidence that buying the item caused the win.
Where the numbers come from
Names, classes, abilities, items and runes are Riot Data Dragon. Win, pick and ban rates, builds, keystones, spells and matchups are counted by GamGem from Riot's ranked match records. An estimate, not a count: this panel is not in the preview sample, and is labelled so.

Zac on video

Published by League of Legends on YouTube, 29 March 2013.

13 years old. League of Legends has been patched since, so watch it for how the kit plays, not for numbers — the rest of this page is written for the current patch.

It plays in YouTube’s own player once you press play. Nothing is downloaded or re-hosted here, and nothing loads from YouTube until then.