Rammus Mid Build, Patch 26.20 — Runes, Ability Damage & ARAM Buffs/Nerfs

the Armordillo · Tank damageTankMid

Every number below is computed from Riot's official game data for patch 26.20 — the Worlds 2026 patch (Data Dragon, with Meraki Analytics ability values and Riot's published ARAM balance), not sampled from match histories. Open the interactive labs to test Rammus against any opponent at any level.

Damage Lab Laning matchup Build Lab ARAM sheet

Rammus build and runes (Mid, patch 26.20)

Item order

Jak'Sho, The Protean
Plated Steelcaps
Sterak's Gage
Warmog's Armor
Heartsteel
Dead Man's Plate

Start: Doran's Shield, Health Potion
Situational: —

Rune page

Resolve · keystone Grasp of the Undying

Demolish, Conditioning, Overgrowth

Secondary: Hextech Flashtraption, Triple Tonic

Summoners: Flash, Ignite · Skill order: Q > E > W

Rammus is classified Tank (durability-first); itemization computed from Jak'Sho, The Protean + current-patch item stats. Win-rate shown is an estimate and does not drive the build.

Rammus base stats by level

Level	Health	Attack damage	Armor	Magic resist	Attack speed
Level 1	645	65.0	35.0	32.0	0.700
Level 6	1,040	75.9	52.8	40.1	0.761
Level 11	1,522	89.1	74.5	50.0	0.836
Level 18	2,345	111.8	111.5	66.8	0.964

Growth follows Riot's per-level curve: value = base + growth × (n−1) × (0.7025 + 0.0175 × (n−1)).

Rammus ability damage per rank

Q — Powerball magic

Rank	R1	R2	R3	R4	R5
Base damage	80	110	140	170	200
Cooldown (s)	12.0	10.5	9.0	7.5	6.0

Scaling: 100/100/100/100/100% AP.

Rammus Q damage by champion level (own stats, no items)

Level	Rank	Raw damage	Cooldown
Level 1	rank 1	80.0	12.0s
Level 3	rank 2	110.0	10.5s
Level 6	rank 3	140.0	9.0s
Level 9	rank 5	200.0	6.0s
Level 11	rank 5	200.0	6.0s
Level 13	rank 5	200.0	6.0s
Level 16	rank 5	200.0	6.0s
Level 18	rank 5	200.0	6.0s

W — Defensive Ball Curl magic

Rank	R1	R2	R3	R4	R5
Base damage	no direct damage
Cooldown (s)	7.0	7.0	7.0	7.0	7.0

Scaling: no scaling.

E — Frenzying Taunt magic

Rank	R1	R2	R3	R4	R5
Base damage	no direct damage
Cooldown (s)	12.0	12.0	12.0	12.0	12.0

Scaling: no scaling.

R — Soaring Slam magic

Rank	R1	R2	R3
Base damage	60	90	120
Cooldown (s)	90.0	90.0	90.0

Scaling: 30/30/30% AP.

Rammus R damage by champion level (own stats, no items)

Level	Rank	Raw damage	Cooldown
Level 6	rank 1	60.0	90.0s
Level 9	rank 1	60.0	90.0s
Level 11	rank 2	90.0	90.0s
Level 13	rank 2	90.0	90.0s
Level 16	rank 3	120.0	90.0s
Level 18	rank 3	120.0	90.0s

Rammus ARAM buffs & nerfs (Howling Abyss balance modifiers)

Rammus plays with Summoner's Rift numbers — no ARAM-specific balance.

ARAM modifier	Value
Damage dealt	—
Damage taken	—
Healing	—
Shielding	—
Attack speed	—
Ability haste	—
Tenacity	—
Energy regen	—

ARAM also starts champions at level 3 with 1,400 gold. The ARAM sheet applies these modifiers to every stat and ability side by side with Summoner's Rift.

Frequently asked

What is the best Rammus build on patch 26.20?

RiftLab's stat-driven build for Rammus Mid is Jak'Sho, The Protean, Plated Steelcaps, Sterak's Gage, Warmog's Armor, Heartsteel, Dead Man's Plate, with Grasp of the Undying as the keystone. It is computed from the champion's damage profile and the opponent's resists, not from win-rate scraping.

Does Rammus have ARAM modifiers?

No. Rammus plays with Summoner's Rift numbers on ARAM; Riot has not given Rammus ARAM-specific balance on patch 26.20.

How much damage does Rammus's Powerball do?

Rammus's Q (Powerball) has a base damage of 80/110/140/170/200 across its ranks and scales with 100/100/100/100/100% AP. Before the target's resistances; use the Damage Lab for the mitigated number against a specific opponent.

How much health does Rammus have at level 18?

Rammus has 2,345 base health, 111.5 armor and 66.8 magic resist at level 18 with no items, on patch 26.20.

Data: Riot Data Dragon 26.20, Meraki Analytics, LoL Wiki ARAM table. Builds are stat-driven recommendations from RiftLab's optimizer, not win-rate aggregates.