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Matchup

Cassiopeia
Cassiopeia
18%
82%

vs

50.0%
Rammus
Rammus
44%
56%
Very tankyStrong engageHeavy CC

You are stronger early — look to snowball before your opponent scales.

Build vs Rammus

Build adapted to this matchup

Starting items

Doran's Ring
Health Potion
x2

Core build

Tear of the Goddess
1
Rod of Ages
2HP
Seraph's Embrace
3Mage

Standard

Boots of Swiftness
4vs Slow
Rylai's Crystal Scepter
5Mage tank

Summoner spells

412100%

Anti AD

Plated Steelcaps
4vs AD
Zhonya's Hourglass
5vs AD

Anti CC

Mercury's Treads
4vs CC

Anti Tank

Bloodletter's Curse
5vs Tank
Stormsurge
vs Tank

DPS

Rylai's Crystal Scepter
Mage tank
Liandry's Torment
Mage tank
Rabadon's Deathcap
Mage
Cosmic Drive
Mage tank
100.0% WR1 games
PrecisionPrecision
ConquerorConqueror
Presence of MindPresence of Mind
Legend: HasteLegend: Haste
Last StandLast Stand
SorcerySorcery
TranscendenceTranscendence
Manaflow BandManaflow Band
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
CassiopeiaCassiopeia
RammusRammus
Careful
Careful
Aggressive

Rammus's abilities

Passive, spells and ultimate

Spiked Shell (P)

Rammus gains bonus Attack Damage scaling with his Armor and Magic Resistance.

Cooldowns

Cooldowns by spell rank

LevelQWER
312s7s12s–
69s7s12s2m
96s7s12s2m
116s7s12s1m45
166s7s12s1m30
186s7s12s1m30

Playing against Rammus

How to counter and exploit weaknesses

1

Magic damage counters him: Rammus stacks armor but is vulnerable to AP.

2

Do NOT auto-attack him when his W is active: every auto reflects massive damage back to you.

3

His Q can be blocked by minions or any unit — position yourself behind minions.

4

The taunt is targeted but short range: kite him and stay out of E range.

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