Tank Engine
GoldOn takedown, gain a stack that increases your size and max Health. Lose stacks on death.
Bthe Titan of the Depths
Tier B
Celestial Body · Steel Your Heart
On takedown, gain a stack that increases your size and max Health. Lose stacks on death.
Gain 1500 Health, but you deal 10% less damage.
QUEST: Possess Heartsteel with 300+ stacks. REWARD: Multiply your Heartsteel stacks by 3.
Your Attacks deal additional physical damage equal to 3.5% of your max Health.
Immobilizing or Grounding enemy champions with deals extra damage and heals you.
Your Attacks and Abilities execute low Health enemy champions, Knocking Back and causing an explosion while healing you.
Become large, gaining 35% Health and 15% Adaptive Force.
When damages enemy champions, gain 1 - 3 (based on level) Armor and Magic Resistance.
Gain 150 - 450 (based on level) (+4% max Health) Shield after Immobilizing or Grounding an enemy champion.
Shields granted from are stronger and scaling with target's missing Health.
Augment order comes from OP.GG. Runes, items and skill order below come from regular ARAM games on the same map.
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Strongest early, falls off later
Win rate (%) by game length in minutes. Dashed line = 50%.
Fimbulwinter38.4% · 54.3%
Nautilus' first Attack against a target deals increased physical damage and roots them briefly.

Nautilus hurls his anchor forward. Colliding with an enemy pulls them and Nautilus together, dealing magic damage. Colliding with terrain pulls Nautilus towards it.
Cooldown: 14/13/12/11/10s · Cost: 60
Nautilus gains a temporary Shield. While it persists, his Attacks deal damage over time to his target and surrounding enemies.
Cooldown: 12s · Cost: 60
Nautilus creates three exploding waves around himself. Each explosion damages and slows enemies.
Cooldown: 7/6.5/6/5.5/5s · Cost: 50/60/70/80/90
Nautilus fires a shockwave into the earth that chases an opponent. This shockwave rips up the earth above it, knocking enemies into the air. When it reaches the opponent, the shockwave erupts, knocking his target into the air and stunning them.
Cooldown: 120/100/80s · Cost: 100