Very ability-reliant — prioritize stacking ability haste.

Shrink Engine
GoldSize reduction is capped at 80% (20 stacks).
Shrink Engine Trend
| Date | Patch | Rank | Tier | Pick Rate |
|---|---|---|---|---|
| 2026-10-12 | 26.20 | #2 | S+ | 56.23% |
| 2026-10-11 | 26.20 | #2 | S+ | 56.29% |
| 2026-10-10 | 26.20 | #2 | S+ | 56.23% |
| 2026-10-09 | 26.20 | #4 | S+ | 53.64% |
| 2026-10-08 | 26.20 | #13 | S | 46.52% |
| 2026-10-07 | 26.19 | #8 | S | 48.18% |
Shrink Engine Augment Guide - ARAM: Mayhem
Best Champions for Shrink Engine
Rank is where Shrink Engine places among each champion's Gold augments. Pick rate is how often that champion takes it. "Top performer" marks the champions the augment data lists as its best.
| Champion | Rank for champion | Champion pick rate |
|---|---|---|
| S #1 | 22.39% | |
| S #1 | 17.88% | |
| S #1 | 17.47% | |
| S #1 | 17.08% | |
| S #1 | 16.81% | |
| S #1 | 16.68% | |
| S #1 | 16.56% | |
| S #1 | 16.13% |
Champion Combos with Shrink Engine
Archmage + ~190 haste enables infinite WQ knockup. Don't cast E — just WQ on loop.
Ult has high AP scaling and deals magic damage.
E's hit count isn't capped by Slow and Steady — attack-speed items give huge AD, and her passive AS also converts. Main E for damage. Time E around the AS lock; E and R do the heavy lifting.
Passive stacks benefit from Shrink Engine — late-game attack speed easily exceeds 6.0.
Shrink Engine massively cuts R's CD. Stack Soul Eater for HP, and Triple-Stack Dragon bond × 2.5x means hex and champ stacks both ramp absurdly fast. R CD drops to ~10s. Triple-Stack Dragon means one feast = 3 stacks. Since E's % damage scales with R stacks, late damage is huge.
At 500 ability haste, R has only a 12s cooldown.
Stack Shrink Engine to boost haste, infinite AE, max mobility.
Random hex luck = cruise game; we had a 4v5 AFK and still rolled. Shrink Engine's CDR and MS fit Hecarim perfectly; Dropkick deletes squishies cleanly; Infinite Recursion = huge CDR; Q becomes electric fan; Soul Eater for Triple-Stack Dragon bond + HP; Hubris ramps fast and HP boosts Dropkick's execute threshold.
Every Hwei E procs Cruelty — EE especially pulls enemies into one spot. Since Cruelty is AoE, grouped enemies eat stacked Comet damage. After EE pulls them in, the more bodies, the more terrifying the damage.
Hwei's QE (magma) and ult are sustained AoE DoTs — every tick triggers Void Rift for instant AoE nukes. Pair with EE's forced reposition and Void Rift's 99% slow — enemies can't escape.
Tear the void.
Stack Shrink Engine — extreme MS. Don't evolve E — flight is too slow.
Pure AP is squishy and damage-light — go half-tank and stack CDR for faster passive procs. Use R to clear waves.
Morgana's Q and W cooldowns overlap heavily. With Archmage's Q-reduces-W / W-reduces-Q loop, you can perma-root and burn enemies. Only ~80 ability haste needed for infinite QW — high tolerance, miserable to play against.
Q and R both proc Cruelty multiple times with their AoE.
Stack Shrink Engine synergies — Nasus already gets bonus per stack; on a TF Mobi Q stacks 24 normally, 36 with two, 48 with three, 72 with four Shrink Engines.
Build around Fey Magic + Ornn's first R hit. Fey Magic procs Brittle 4 times on first ult — Brittle's 18% max-HP magic damage stacks four ways for 72% max HP, then magic pen + amp items finish the kill. Forge: ability haste > magic pen. At ~500 haste, Fey Magic is ~15s CD and ult is ~16s — every fight is a nuke. Build straight magic pen + damage amp.
Stack the Archmage hex, then loop Qiyana W (resets Q + adds an element) with Archmage's CDR returns for infinite QW combos. At 100+ ability haste it becomes a perfect cycle — endless dashes, stealth, or CC. Manamune is critical since infinite QW drains mana fast.
Always Rylai's — E roots normally and stuns when empowered. Both forms of CC stack Slap Around, and AP piles on fast. Even basic E procs the hex without needing the upgrade.
Build Rylai's so E becomes AoE hard CC, which procs Cruelty.
Shrink Engine or Infinite Recursion + any Stack Dragon bond + Colossus's Courage.
Syndra's QE triggers Slap Around twice; hitting multiple enemies stacks it extra fast.
Stack CDR and plant shrooms everywhere.
Triple-Stack Dragon perma-stacks Thresh passive — great vs melee comps; easy 500 armor.
R deals % magic damage — level 3 base is 30%, +16% at 800 AP, and 3500 AP hits 100% max HP.
Pillar emperor.
Once CDR is high, infinite E permanently jails enemies.
Recall is core — fits Slap Around and Shrink Engine. Slap Around's adaptive force gives 10 AP per W. Watch recall timing.
Ziggs's CDs are already short — stack haste and play it like URF.
Stack ult-CDR to the extreme. Not particularly strong, but extremely satisfying.
Use Shrink Engine for huge haste + Slap Around's Adaptive Force — perma QE CC stacking permanent AD. Open by searching Slap Around; with Triple-Stack Dragon synergy, 1000+ AD is easy and a single R deletes backliners.
Sion's fully-charged Q hits like a truck; pair with damage hexes for absurd burst. Only try this when the enemy lacks reliable CC.
Stack CDR to the limit and spam pillars with main-E for max meme value.
Community score and comments
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