Ominous Pact ARAM Mayhem Augment Guide

"Unholy Covenant": Sacrifice maximum health for significant damage bonus. The ultimate rune for burst champions.

"Unholy Pact: Core effect: Sacrifice 25% max health immediately for permanent damage bonus Damage bonus: Gain 30% increased damage Bonus scaling: Gain 1% additional damage per 1% max health sacrificed (max 25% additional for 55% total) Life recovery: Sacrificed health cannot be restored through any means until game ends Real-time update: Sacrificed health percentage remains constant when max health changes Restriction: Affects only self

Triggered immediately when selecting the rune All basic attacks (including enhanced attacks) All active ability damage (AD, AP, true damage) Equipment ability damage All damage from pets

Healing/shield effects Tower/minion attacks Damage from allied champions Reflected damage (e.g., Thornmail)

"Blood Pact: Highest priority: Blood Pact's damage bonus is calculated after all other damage bonuses\nPermanent effect: Damage bonus persists until game end\nHP calculation: Sacrifices 25% of current max HP, subsequent HP gains are proportionally deducted\nDeath retention: Damage bonus isn't lost on death, continues after revival" ,"Burst synergy: Suitable for burst champions who don't need sustained combat

"First Strike: Pure burst assassins (Zed, Talon, Akali) Burst mages (Annie, Ahri, Fizz) Burst marksmen (Draven, Jhin, Kai'Sa) One-shot champions

Unholy Covenant: Sustained damage champions (Vayne, Jinx, Brand) Pure tank (Alistar, Leona, Ornn) Pure support (Soraka, Karma, Nami) Champions that need to fight continuously

Unholy Covenant: Focus on burst damage: one-shot enemy carries with full combo, avoid prolonged fights. Don't initiate team fights: let teammates engage first before you deal damage. Build burst damage items: further increase burst damage. Use Flash and mobility skills: deal your combo and disengage, don't overstay. Watch your safety: low HP makes you easy to burst.

Ominous Pact + Vampirism: Ominous Pact's health cost is offset by Vampirism's 25% omnivamp, which scales with the bonus AP and movement speed gained at low health. The omnivamp from both augments stacks, creating massive sustain during extended fights where staying at lower health maximizes damage output. Ominous Pact + Celestial Body: Celestial Body's 1500 bonus health provides a larger health pool to safely spend on Ominous Pact's ability costs. The damage reduction is partially compensated by the AP scaling from missing health, while the extra survivability ensures you reach the optimal low-health state. Ominous Pact + Perseverance: Perseverance's massive health regeneration counteracts Ominous Pact's 5% current health cost per ability cast. The regeneration scales up when below 25% health, exactly when Ominous Pact provides maximum AP, movement speed, and omnivamp for peak combat performance. Ominous Pact + Goredrink: Goredrink's 15% omnivamp synergizes with Ominous Pact's up to 20% omnivamp at low health, creating substantial combined sustain. The health costs become negligible as both omnivamp sources heal back ability damage, encouraging aggressive play at lower health thresholds. Ominous Pact + Dawnbringer's Resolve: Dawnbringer's Resolve heals 30% maximum health when dropping below 50%, providing a safety net for Ominous Pact's health expenditure. This emergency heal allows you to reach the optimal low-health damage window with a recovery option during prolonged ARAM teamfights.

Avoid Ominous Pact + Glass Cannon: Glass Cannon sets your health threshold to 70% maximum health, which directly conflicts with Ominous Pact's design that rewards you for reaching 70% missing health. You cannot access the full AP, movement speed, and omnivamp scaling that Ominous Pact provides, making this pairing fundamentally incompatible and wasteful. Avoid Ominous Pact + Vampirism: Vampirism sets your health regeneration to 0 and prevents ally healing, while Ominous Pact costs 5% current health per ability cast. The 25% omnivamp from Vampirism is redundant since Ominous Pact already grants up to 20% omnivamp based on missing health, and the anti-healing mechanic undermines your ability to sustain through the health costs. Avoid Ominous Pact + Celestial Body: Celestial Body grants 1500 bonus health but reduces your damage output by 10%. The larger health pool means Ominous Pact's 5% current health cost drains more absolute health per cast, while the damage reduction diminishes the value of the AP you gain from missing health scaling. Avoid Ominous Pact + Perseverance: Perseverance grants massive base health regeneration, but Ominous Pact's health costs scale with current health rather than being mitigated by regeneration. The regeneration effect provides minimal value during active combat when you're rapidly spending health on abilities, and the two mechanics have poor synergy together.

Unholy Covenant: Don't pick for sustained damage dealers: low health, easily bursted Don't initiate fights: low health, will be focused and killed Don't prolong fights: burst and disengage, don't stay too long Don't build defensive items: stack damage for maximum burst Note health pool: low health makes even minion attacks dangerous