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Zac Guide

Ability numbers checked on patch 26.21 · Strategy reviewed: October 2026

Zac splash art for this Zac guide

Zac plays the jungle as the Secret Weapon blob-tank engage pick on patch 26.22. Stretching Strikes punches two targets and pulls them toward each other. Unstable Matter deals percent-current-HP damage around Zac. Elastic Slingshot wind-up charge-launches Zac across a long distance for a point-blank AoE landing. Let’s Bounce! transforms Zac into a bouncing ball, each landing dealing damage and knock-up.

Zac’s Data Dragon file lists him under Tank and Fighter tags, 8 out of 10 difficulty rating, 175 melee auto range, and no traditional resource (he spends Health on abilities and recovers it through blob pickups). His Cell Division passive splits Zac into 4 blobs on death — if he picks up every blob before they’re destroyed, he resurrects at the merge point.

Abilities and role

Zac’s lane plan on patch 26.22 is the Jungle solo-queue engage tank. The Elastic Slingshot flank from fog of war ends 2v2 skirmishes before enemies see the wind-up; his Cell Division passive provides a baked-in second life inside committed fights.

Cell Division (Passive)

On death, Zac splits into 4 blobs that scatter from the death point. If Zac picks up every blob (or they survive their 10-second decay) before they are destroyed, he resurrects at the merge point. For what it’s worth, Cell Division is Zac’s primary teamfight insurance; a committed engage into the enemy backline still returns the ally frontline value because Zac resurrects behind the enemies.

Stretching Strikes (Q)

Zac punches at a target enemy, dealing damage. The second cast within a short window extends to a second target, pulling both toward each other for brief impact damage. 14 to 8 second cooldown, costs health per cast. The pull is Zac’s primary setup against grouped enemies; a double-Q into clumped enemies in a jungle entrance pins them together for a follow-up E landing.

Unstable Matter (W)

Zac deals percent-current-HP damage around him. The ability has a short radius and no cast time; weave it into auto cycles for the HP shred inside extended skirmishes. 5 second cooldown, costs health. The W is Zac’s primary damage ability during the laning or jungle clear phase; the percent-HP scaling pays off against tanky enemy junglers.

Elastic Slingshot (E)

Zac winds up for 1 to 2 seconds, then launches himself over a long distance (scaling with charge duration). On arrival, enemies in a radius are knock-upped and dealt damage. 21 to 9 second cooldown, costs health. The E is Zac’s primary engage; the wind-up is slow but the range is long enough to flank from fog of war.

Let’s Bounce! (R)

Zac transforms into a bouncing ball for 3 seconds. Each bounce deals magic damage and knock-ups enemies around the landing point. Zac can control the direction of each bounce. 120 to 90 second cooldown, costs health. The R is Zac’s primary teamfight tool; the chain-bouncing covers wide battlefields and chains together multiple knock-up events.

Build and item spikes

Zac’s jungle opens with Scorchclaw Pup for the early gank pressure (the Pup’s slow helps land committed Elastic Slingshot engages). Smite plus Flash locks in. The first spike comes from Hollow Radiance for the burn-plus-cleanse procs that pay off during all-in Cell Division blob recovery, or Heartsteel on scaling drafts for the stacking HP-slam burst.

Second slot bakes in Warmog’s Armor for the HP pool amping Cell Division blob durability (bigger HP = longer-lasting blobs on resurrect). Slot three rotates on matchup: Abyssal Mask for the AoE Magic Resist aura, Dead Man’s Plate for the sticky MS on Elastic Slingshot committed dives, or Thornmail against Grievous-Wounds-dependent enemy comps. The LoL items database covers the sixth-item spike.

How to play by game stage

Pre-6 Zac clears jungle with Unstable Matter percent-HP ticks on each camp. First gank at level 3 or 4 uses Elastic Slingshot wind-up charged from fog of war into the lane; the ally laner follows up with their CC chain.

Mid game (7-13): Hollow Radiance online is Zac’s dragon-fight spike. Elastic Slingshot flanks from fog of war onto the enemy ADC during a 2v2 skirmish; Cell Division’s second-life insurance lets Zac commit without surviving-the-trade concerns.

Late game (14+): Zac fights from the enemy backline. Let’s Bounce chain-bouncing covers wide battlefields. Elastic Slingshot opens the next engage after Cell Division resurrects. Warmog’s HP buffer lets Zac absorb committed burst inside the enemy frontline.

Who counters Zac

Three distinct pressure types bleed a Zac jungle phase. Early-pressure junglers (Lee Sin, Elise, Nidalee) invade his level-1 clear before Cell Division comes online. Grievous-Wounds enablers (Morgana ignite, Pantheon ignite) cancel blob regeneration between fights. Mobile ADCs (Ezreal, Tristana, Kai’Sa) dash out of Elastic Slingshot landing zones.

  • Invading junglers: Lee Sin, Elise, Nidalee. Each punishes Zac’s weaker pre-6 jungle by invading his first camp.
  • Anti-regen: Morgana, Pantheon with Ignite. Each denies Zac the Cell Division chunks between fights by clearing the trail or staying grouped.
  • Mobile ADCs: Ezreal, Tristana, Kai’Sa. Each dash out of Elastic Slingshot landing zones.

Deeper matchup notes with ability-level timings for every Zac opponent land on the Zac counters page.

ARAM notes

Howling Abyss plays into Zac’s kit (every fight is a stacked bridge fight for AoE knock-ups). Hollow Radiance opens for the burn-plus-cleanse procs during long bridge standoffs. Warmog’s Armor follows as the HP buffer that lets his Elastic Slingshot flank absorb the enemy’s first committed burst chain. Abyssal Mask third slot stacks the AoE MR aura inside the clumped teamfights. Let’s Bounce from the Nexus turret into the bridge choke chains together 4-plus knock-ups. The ARAM balance tag Riot assigns on 26.22 shifts his output; the live patch notes name the exact modifier.

Zac pairs well with ally ADCs with sustained auto cadence (Jhin, Caitlyn, Ashe) that convert his R knock-up chain into kill chains. The Zac ARAM build page carries the full item path and matchup table.

Zac skins

Skins: 7 · Newest: Special Weapon Zac (2026)

Theme-wise, the lineup includes Battlecast, Empyrean, Pool Party, Special Weapon and multiple event drops. Three stand out for full VFX reworks on R Let’s Bounce! animation.

  • Battlecast Zac (1350 RP): sci-fi-mech theme with reworked plasma Stretching Strikes and shockwave R.
  • Empyrean Zac (1350 RP): neon-cyber theme with reworked data-shard Unstable Matter and glitch R.
  • Pool Party Zac (750 RP): summer-event theme with reworked water-splash Elastic Slingshot and inflatable-ring R.

See All Zac skins and prices for the full catalogue with RP tags and release years.

FAQ

Is Zac easy to learn?

8/10 at the E-charge timing. His E Elastic Slingshot charges up for a 2500-unit jump — new Zacs E at min charge (weak), mains E at max charge for a flanking engage. His R Let's Bounce bounces Zac 3x in a row — do not R to escape (telegraphed), R mid-fight for the ally team to follow up.