Matchup

Strong engageHeavy CCVery tankyHigh sustain

You are stronger late game — farm safe and avoid early trades.

Build vs Zac

Build adapted to this matchup

Starting items

Health Potion
x2

Core build

Bandlepipes
1vs Hybride
Locket of the Iron Solari
2HP
Knight's Vow
3vs AD

Standard

Boots of Swiftness
4vs Slow
Solstice Sleigh
5HP

Summoner spells

4739%
41431%

Anti AD

Plated Steelcaps
4vs AD
Thornmail
5vs Hybride
Frozen Heart
vs AD
Randuin's Omen
vs AD

Anti CC

Mercury's Treads
4vs CC

Other options

Solstice Sleigh
HP
Celestial Opposition
HP
Protoplasm Harness
Survival
100.0% WR3 games
ResolveResolve
GuardianGuardian
Font of LifeFont of Life
Bone PlatingBone Plating
UnflinchingUnflinching
InspirationInspiration
Biscuit DeliveryBiscuit Delivery
Cosmic InsightCosmic Insight
Attack SpeedHealth ScalingHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
BraumBraum
ZacZac
Neutral
Neutral
Neutral

Zac's abilities

Passive, spells and ultimate

Cell Division (P)

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.

Cooldowns

Cooldowns by spell rank

LevelQWER
314s5s22s
611s5s22s2m
98s5s22s2m
118s5s22s1m45
168s5s16s1m30
188s5s10s1m30

Playing against Zac

How to counter and exploit weaknesses

1

Walk on his blobs (passive) to destroy them and prevent him from healing.

2

His E is long range but visible and has a windup: side-step when you see him charging.

3

If Zac dies, he splits into blobs that reform: kill all 4 blobs to kill him for good.

4

His engage is strong but he's vulnerable to burst once inside — focus him after his engage.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026