Shrink Engine ARAM Mayhem Augment Guide

Shrink Engine: Reduces champion size and gains ability haste and movement speed after participating in takedowns, stackable infinitely, making ability-based champions extremely fast with near-zero cooldowns late game, useless for tanks.

Shrinking Engine: Trigger condition: Gain 1 stack for each champion kill/assist. Benefit: Each stack provides 8 ability haste, 1% bonus movement speed, and reduces size by 4%. Stacking: Theoretically infinite stacks. Limit: Size reduction capped at 80% (stops shrinking after 20 stacks, but ability haste and MS continue stacking). Death penalty: Lose 65% stacks on death (rounded down, e.g., 10 stacks becomes 3).

Shrinking Engine: Killing enemy champions Assisting enemy champions (as long as you dealt damage or applied CC/buffs to the target within 10 seconds before the kill) Participating in killing heroes controlled by pets (such as Annie's bear, Malzahar's Voidling kills) Participating in killing all enemy heroes in clone mode

Shrinking Engine: Killing minions, monsters, towers, Killing allied heroes (including accidental kills), Enemy hero suicides (Ignite, poison), Unassisted kills (no impact)

Miniaturizer: Size Doesn't Affect Skill Hitboxes: Your skill ranges and collision volume don't shrink with size, making it easier to dodge skills and move through enemy crowds Skill CDR No Cap: After 20 stacks, size no longer changes, but skill CDR and movement speed can stack infinitely, allowing near-unlimited skill spam late game Precise Stack Calculation: Death loses 65% stacks rounded down, e.g., 3 stacks death leaves 1, 4 stacks death also leaves 1 26.5 Nerf: Each skill CDR reduced from 10 to 8, each MS reduced from 2% to 1%, but overall strength remains high

Mini-Engine: Champions with short skill CDs who can frequently assist (like Ziggs, Viktor, Ziggs) Highly mobile and durable champions (like Ezreal, Lillia, Hecarim) Champions with large AOE who can easily assist in teamfights (like Morgana, Kennen, Galio) Champions who naturally rely on ability haste (like Ryze, Karma, Soraka)

Single-target assassins with no AOE and difficulty securing assists (like Zed, Talon, Akali) Late-game hypercarries who are extremely weak early and die easily (like Vayne, Jinx, Kindred) Auto-attack reliant champions with low attack speed scaling (like Draven, Olaf, Tryndamere) Already squishy champions who can be bursted easily (like Katarina, Ahri, Syndra)

Miniaturize Engine: Prioritize survival before stacking: alive means damage, don't dive for an assist and lose half stacks. Play hit-and-run fights: use high MS and short CD abilities to poke and retreat, wait for CDs. Use size advantage: after 10 stacks, you become very small, easily dodging non-targeted abilities. Don't be too aggressive early: Miniaturize is a growth rune, first 5 stacks have low returns, be patient. Focus on AoE in teamfights: getting assists is enough to stack, no need to force kills.

Shrink Engine + Infinite Recursion: Shrink Engine stacks ability haste per takedown while Infinite Recursion grants 60 base ability haste plus 3 more per takedown. Together they create exponential scaling—each kill accelerates both your cooldown recovery and movement speed simultaneously. The combined haste lets you chain abilities faster, securing more takedowns to build additional stacks in continuous ARAM teamfights. Shrink Engine + Executioner: Executioner resets all basic ability cooldowns on takedown, directly enabling more frequent takedowns to stack Shrink Engine faster. The 10% execute damage helps secure kills while the reset mechanic creates chain-kill potential. Each reset means more abilities cast, more kill opportunities, and faster stacking of both the ability haste and movement speed from Shrink Engine. Shrink Engine + Giant Slayer: Giant Slayer grants 20% bonus movement speed and 75% size reduction, stacking with Shrink Engine's movement speed and size reduction. At maximum Shrink Engine stacks, you become nearly untargetable while moving at exceptional speed. The bonus damage against larger enemies synergizes with your tiny size, making you a hyper-mobile damage dealer. Shrink Engine + Tap Dancer: Tap Dancer grants infinite stacking movement speed on-hit plus attack speed equal to 10% of total movement speed. Shrink Engine adds percentage movement speed per takedown, creating multiplicative scaling. As you secure kills and attack champions, both your movement speed and attack speed accelerate dramatically, making you increasingly elusive in extended fights.

Avoid Shrink Engine + Goliath: Goliath grants 50% increased size while Shrink Engine reduces size by 4% per stack, creating a direct mechanical conflict. These opposing size modifiers work against each other, undermining the visual and mechanical benefits of both augments. Players should avoid this pairing because the size reduction from Shrink Engine is partially negated by Goliath's size increase. Avoid Shrink Engine + Tank Engine: Tank Engine increases size by 5% per stack while Shrink Engine reduces size by 4% per stack. Both augments stack infinitely on champion takedowns, creating redundant stacking mechanics with conflicting size modifiers. Avoid this pairing because the opposing size effects diminish the practical impact of both augments' stacking rewards. Avoid Shrink Engine + Giant Slayer: Giant Slayer grants bonus damage against enemies with greater size, but Shrink Engine reduces your own size, which synergizes with Giant Slayer's requirement. However, both augments provide movement speed, creating partial stat overlap. The pairing is inefficient because Giant Slayer's damage bonus becomes redundant when you are already smaller than most targets. Avoid Shrink Engine + Recursion: Recursion grants 60 ability haste while Shrink Engine provides 8 ability haste per stack. Both augments offer the same primary stat, creating diminishing returns on ability haste investment. Players should avoid this pairing because the flat ability haste from Recursion becomes less valuable when Shrink Engine already provides scaling ability haste that can exceed 100 stacks.

Mini-Engine: Don't trade half your stacks for an assist: This is the most fatal mistake. An assist gives only 1 stack, but dying drops 65% of your stacks. Dying at 10 stacks leaves only 3, equivalent to 7 assists wasted. Always remember 'living > everything'. Don't ignore the defensive value of size reduction: Many players only focus on ability haste and MS but forget shrinking helps dodge non-targeted skills like Malphite ult, Azir Q, or Jinx R. This is Mini-Engine's strongest hidden survival tool. Don't build pure tank items: Mini-Engine provides ability haste and MS pure tank items leave you with no damage. You can't stack assists if you can't kill enemies. Don't force stacking in losing lanes: In losing lanes, teammates are defending towers rushing out for assists gets you picked off, causing a恶性循环 (vicious cycle). Defend towers and waveclear, then look for opportunities when your team groups. Don't get cocky at 20 stacks: 20 stacks is the size reduction cap, but ability haste and MS can still stack. Many players feel invincible at 20 stacks and start overextending, losing all stacks and turning a big advantage into a disadvantage. Watch enemy large AoE: Despite being small, you can't dodge large AoE like Malphite ult, Kennen R, or Morgana R. In teamfights, stay on the sides and don't initiate. More stacks aren't always better: At 30+ stacks, ability haste starts to overflow, and stacking further provides diminishing returns. Focus on pushing towers and taking objectives to end the game instead of continuing to kill for stacks.