Top augment choices for Malphite include Heavy Hitter (Silver), Tank Engine (Gold), Goliath (Prismatic).
Overall
Goliath
GoliathBecome large, gaining @HealthAmp*100@% Health and @AFAmp*100@% Adaptive Force.
Tier: S+
Pick %: 19%
Tank Engine
Tank EngineGain increased size and percent bonus Health per takedown.
Tier: S+
Pick %: 18%
Heavy Hitter
Heavy HitterYour Attacks deal additional physical damage equal to @HealthPercent*100@% of your max Health.
Tier: S+
Pick %: 13%
Silver
Heavy Hitter
Heavy HitterYour Attacks deal additional physical damage equal to @HealthPercent*100@% of your max Health.
Tier: S+
Pick %: 13%
Clothesline
ClotheslineThere is a tether connecting your team, deals constant magic damage to enemies it touches.
Tier: S+
Pick %: 8%
ADAPt
ADAPtConvert Bonus Attack Damage to Ability Power. Gain @APAmp*100@% Ability Power.
Tier: S+
Pick %: 7%
Gold
Tank Engine
Tank EngineGain increased size and percent bonus Health per takedown.
Tier: S+
Pick %: 18%
Quest: Steel Your Heart
Quest: Steel Your HeartRequirement: Possess Heartsteel with @StackThreshold@+ stacks. Reward: Multiply your Heartsteel stacks by @StackMultiplication@. Increase your Health Regeneration by @StacktoRegenConversion*100@% of your Heartsteel stacks.
Tier: S+
Pick %: 11%
Celestial Body
Celestial BodyGain @Health@ Health, but you deal @DamageReduction*100@% less damage.
Tier: S+
Pick %: 11%
Prismatic
Goliath
GoliathBecome large, gaining @HealthAmp*100@% Health and @AFAmp*100@% Adaptive Force.
Tier: S+
Pick %: 19%
Jeweled Gauntlet
Jeweled GauntletYour Abilities can Critically Strike. Gain %i:scaleCrit% @CritGranted@% Crit Chance.
Tier: S+
Pick %: 10%
Dreadbringer
DreadbringerGain an aura that continuously harvests permanent Cursed Power per enemy champion inside. Gain max Health based on your Cursed Power.