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Matchup

Zac
Zac
30%
70%

vs

50.0%
Sion
Sion
63%
37%
Very tankyHeavy CCStrong engageSplit push

Build vs Sion

Build adapted to this matchup

Starting items

Mosstomper Seedling
Health Potion

Core build

Hextech Rocketbelt
1Mage tank
Sunfire Aegis
2vs AD
Spirit Visage
3vs AP

Standard

Ionian Boots of Lucidity
4CDR
Thornmail
5vs Hybride

Summoner spells

411100%

Anti AD

Plated Steelcaps
4vs AD
Thornmail
5vs Hybride
Unending Despair
vs AD
Randuin's Omen
vs AD

Anti AP

Mercury's Treads
4vs CC
Jak'Sho, The Protean
5vs Hybride

DPS

Riftmaker
Mage tank

Other options

Protoplasm Harness
Survival
100.0% WR2 games
ResolveResolve
AftershockAftershock
Font of LifeFont of Life
ConditioningConditioning
RevitalizeRevitalize
PrecisionPrecision
Legend: HasteLegend: Haste
TriumphTriumph
Ability HasteAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

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

Sion's abilities

Passive, spells and ultimate

Glory in Death (P)

After being killed, Sion will temporarily reanimate with rapidly decaying Health. His attacks become very rapid, heal him, and deal bonus damage based on his target's maximum Health.

Cooldowns

Cooldowns by spell rank

LevelQWER
310s15s12s–
68s15s12s2m20
96s14s12s2m20
116s13s12s1m40
166s11s10s1m
186s11s8s1m

Playing against Sion

How to counter and exploit weaknesses

1

His Q charge can be interrupted by CC — stun him during the channel to cancel the knockup.

2

Sidestep his R (charge): he can't turn easily once he's started.

3

His zombie passive is slow: simply walk away from him, don't stay in range.

4

The W shield can be popped before it detonates: burst it quickly to prevent the damage from going off.

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