Tank Engine: LoL Arena Augment

Tank Engine is a gold augment in League of Legends Arena.

Overview

Scoring a champion takedown permanently grants bonus maximum health and size. This effect can be triggered only once per champion per round.²

Level	Effect
1	2% bonus maximum health.10% size.
2	5% bonus maximum health.15% size.

2026 Season 3 Act 2, all regions

BArenaSweats tierB tier

Full stats on ArenaSweats PagesFrom ranked Arena games tracked by ArenaSweats, updated 5 Nov 2026.

Tank Engine, the Heartsteel quest, Celestial Body, and Icathia's Fall form a combination that has won several games.⁴
The ADapt combination with Tank Engine, Overlord's Bloodmail, Riftmaker, Rabadon's Deathcap, and the Heartsteel quest is less powerful than other extreme high rolls.⁵
Take Tank Engine as early as possible.⁶
Apex Inventor, Steel Your Heart, and Tank Engine form an incredible high roll.⁷

Stackosaurus Rex works with Tank Engine's permanent stacks, which can be fractional.⁸⁹¹⁰
Level 2 Tank Engine grants its increase retroactively.¹¹
Tank Engine and Steel Your Heart always appear together on the same augment selection screen without rerolls.¹²

No verified information yet.

Riot patch notes that name Tank Engine, newest first

Patch	Date	Changes
25.178x2 duos	26 Aug 2025	Rarity Changed from Silver to Gold.¹³

Building tank rather than AP can be better for Swain when you get Tank Engine.¹⁴ 8x2 duos

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