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Matchup

Janna
Janna
30%
70%

vs

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

Build vs Rammus

Build adapted to this matchup

Starting items

Health Potion
x2

Core build

Moonstone Renewer
1HP
Mikael's Blessing
2HP
Redemption
3

Standard

Boots of Swiftness
4vs Slow
Dream Maker
5HP

Summoner spells

4769%
3415%

Anti CC

Mercury's Treads
4vs CC

DPS

Imperial Mandate
Mage

Other options

Dream Maker
HP
Shurelya's Battlesong
Ardent Censer
Dark Seal
Celestial Opposition
HP
Solstice Sleigh
HP
Dawncore
100.0% WR2 games
SorcerySorcery
Summon AerySummon Aery
Manaflow BandManaflow Band
CelerityCelerity
Gathering StormGathering Storm
ResolveResolve
RevitalizeRevitalize
Font of LifeFont of Life
Adaptive ForceMove SpeedHealth Scaling

Power Spikes

Strength by game phase

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

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