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Matchup

Rammus
Rammus
44%
56%

vs

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

Build vs Sion

Build adapted to this matchup

Starting items

Gustwalker Hatchling
Health Potion

Core build

Thornmail
1vs Hybride
Protoplasm Harness
2Survival
Randuin's Omen
3vs AD

Standard

Boots of Swiftness
4vs Slow
Sunfire Aegis
5vs AD

Summoner spells

41180%
61120%

Anti AD

Plated Steelcaps
4vs AD
Sunfire Aegis
5vs AD
Dead Man's Plate
vs AD

Anti AP

Mercury's Treads
4vs CC
Jak'Sho, The Protean
5vs Hybride
Hollow Radiance
vs AP
Force of Nature
vs AP
100.0% WR1 games
ResolveResolve
AftershockAftershock
Font of LifeFont of Life
ConditioningConditioning
UnflinchingUnflinching
PrecisionPrecision
Legend: AlacrityLegend: Alacrity
TriumphTriumph
Attack SpeedHealth ScalingHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
RammusRammus
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