Impassable ARAM Mayhem Augment Guide

Mountain of Strength: Permanently increase health and resistances, gaining additional resistance when crowd controlled. An exclusive core defensive rune for tank champions.

Immovable as a Mountain: Core effect: Immediately gain 250 health, 25 armor, and 20 magic resist. Bonus effect: When under any control effect, gain 35% bonus armor and magic resist for 3 seconds. Growth stats: Gain 18 health, 1.5 armor, and 1 magic resist per level. Stacking rule: With multiple controls, duration refreshes but resistances don't stack. Death penalty: No loss of stats on death.

Immediate effect when selecting rune When affected by any CC effects On level up When taking damage

When not crowd controlled Healing/shield effects Tower/minion attacks Enemy champion suicide

Stalwart: Bonus resistances activate 0.5s before being controlled Bonus resistances persist during continuous CC Bonus resistances scale with other equipment and rune percent bonuses Doesn't work against true damage

Immovable Object: Pure tank frontliners (Alistar, Leona, Braum, Ornn) Initiating fighters (Jarvan IV, Hecarim, Sejuani) Easily focused utility champions (Morgana, Galio) Champions with persistent crowd control

Immovable as a Mountain: Pure output assassins (Zed, Talon, Akali) Ranged squishy ADCs (Vayne, Draven, Zeri) Pure AP mages (Ziggs, Vel'Koz, Jinx) Split-push champions

Immovable Object: Initiate team fights to draw all enemy attention Use CC abilities to trigger bonus resistances, becoming harder to kill Prioritize stacking health and resist items Protect your carry by absorbing all damage

Impassable + Courage of the Colossus: Impassable provides Aftershock which grants defensive stats after immobilizing enemies, and Glacial Augment which slows on attacks. Courage of the Colossus adds a substantial shield whenever you immobilize or ground enemies, directly triggered by both keystones' effects. This combination transforms you into an unkillable frontline presence in ARAM's constant teamfights, gaining massive resistances, shields, and crowd control on every engagement. Impassable + Guilty Pleasure: Impassable grants Aftershock and Glacial Augment, both of which trigger immobilize or slow effects on enemies. Guilty Pleasure heals you for a percentage of your maximum health every time you immobilize or ground an enemy champion. This creates a self-sustaining tank build where every Glacial Augment slow or Aftershock activation provides significant healing, keeping you healthy through extended ARAM skirmishes. Impassable + Adamant: Impassable provides Aftershock and Glacial Augment, both capable of triggering immobilize effects. Adamant grants stacking bonus armor and magic resistance each time you immobilize or ground an enemy, stacking up to 100 bonus resistances. Combined with Aftershock's defensive stats, you become incredibly tanky in prolonged fights, able to soak massive damage while perma-slowing enemies with Glacial Augment. Impassable + Slap Around: Impassable grants Aftershock and Glacial Augment, both of which can immobilize or slow enemies. Slap Around grants adaptive power permanently each time you immobilize or ground an enemy champion. This creates a scaling tank build where you gain infinitely stacking attack damage or ability power while providing consistent crowd control and survivability through Aftershock's defensive bonuses.

Avoid Impassable + Back to Basics: Avoid this pairing because Back to Basics permanently seals your ultimate ability, which completely negates the value of Aftershock. Aftershock requires immobilizing an enemy champion to trigger, but its defensive stats and explosion are most valuable when diving with ultimate abilities. Losing your ultimate removes a primary engage tool that would synergize with Glacial Augment's crowd control. Avoid Impassable + Slow and Steady: Avoid this pairing because Slow and Steady sets your base attack speed to a static amount and prevents all attack speed bonuses from functioning. Glacial Augment requires basic attacking to trigger its freeze effect on enemies, and being unable to build attack speed severely limits how often you can apply the slow, wasting the keystone's offensive utility. Avoid Impassable + Scopier Weapons: Avoid this pairing because Scopier Weapons grants massive bonus attack range, keeping you far from enemies. Glacial Augment requires you to basic attack enemies to trigger its freezing effect, but the increased range makes it harder to stay close enough to consistently apply the freeze. Aftershock also requires being in melee range to capitalize on its defensive benefits. Avoid Impassable + Glass Cannon: Avoid this pairing because Glass Cannon caps your health at 70% of maximum health and prevents any increase. Aftershock grants defensive stats based on your bonus resistances and explodes for damage based on your maximum health. The reduced health pool significantly weakens Aftershock's survivability window and defeats the tanky playstyle both keystones encourage.

Unmovable Mountain: Don't only stack health and ignore resistances, will be killed quickly by true damage Don't forget taking control triggers bonus resistances, try to use more CC in teamfights Don't force teamfights when behind, even tanky champions can't survive 5-man focus Late-game scaling makes resistances very valuable, no need to rush defensive items