Tank

Zac

The Secret Weapon

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.Read the full story on Riot's Universe site

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P
Cell Division
Q
Stretching Strikes
W
Unstable Matter
E
Elastic Slingshot
R
Let's Bounce!

Zac

Overview

On patch 16.21, Zac is rated B tier in the jungle, winning 54.4% of 1,540 ranked games with a 1.6% pick rate. The most successful build this patch runs Aftershock with Flash and Smite and builds Sunfire Aegis, Spirit Visage, Thornmail, and Ionian Boots of Lucidity.

Zac struggles most against Ekko (34.5%), Naafiri (36.4%), and Warwick (41.2%) and does best against Sejuani (70%), Vi (69.6%), and Elise (66.7%).

Ranked solo/duo · patch 16.21 · 1,540 games · updated Nov 1, 2026 · How we calculate

54.4%

Win rate

1.6%

Pick rate

1.5K

Games

16.21

Patch

Playing as 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.

Guides

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Matchups

All Zac matchups

Strong against

Sejuani70.0%20
Vi69.6%23
Elise66.7%21
Lee Sin64.5%62
Master Yi63.7%80

Weak against

Ekko34.5%29
Naafiri36.4%22
Warwick41.2%68
Viego43.3%104
Cho'Gath45.0%40

Abilities

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.
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: 14/12.5/11/9.5/8Cost: 0Range: 800
W
Unstable Matter
Zac explodes outward towards nearby enemies, dealing a percentage of their maximum health as magic damage.
Cooldown: 5Cost: 0Range: 350
E
Elastic Slingshot
Zac attaches his arms to the ground and stretches back, launching himself forward.
Cooldown: 21/18/15/12/9Cost: 0Range: 300
R
Let's Bounce!
Zac bounces four times, knocking up enemies hit and slowing them.
Cooldown: 120/105/90Cost: 0Range: 300