Season 15 Guide
DIABLO IV / SEASON 15 / SPLINTERS OF EVIL

How to Choose and Switch Splinters of Evil

Choose Terror, Destruction, or Hatred according to the activity you plan to run next. This patch 3.2.1 guide maps each Splinter to its activities, iconic power, honor track, and switching requirement.

Verified patch: 3.2.1Verified: 2026-09-22One active at a timeSeasonal Realm
QUICK ANSWER

Choose Terror for Helltides or Infernal Hordes, Destruction for Kurast Undercity or Lair Bosses, and Hatred for the Pit or Nightmare Dungeons. Every Splinter supports Whispers, so Whispers alone do not require a switch.

SELECT

Three Splinters and Their Activities

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Splinter of Terror: Diablo

Supports Helltides and Infernal Hordes. Diablo's iconic power periodically deals Fire damage during combat.

Splinter of Destruction: Baal

Supports Kurast Undercity and Lair Bosses. Baal's iconic power periodically deals Cold damage during combat.

Splinter of Hatred: Mephisto

Supports the Pit and Nightmare Dungeons. Mephisto's iconic power periodically deals Physical damage during combat.

SWITCH

Unlock, Choose, and Switch

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STEP 01

1. Collect All Three in the Questline

Defeat Diablo beneath Tristram Cathedral, Baal at Arreat Summit, and Mephisto in the Durance of Hate to collect all three Splinters.

STEP 02

2. Bear One Splinter for Your Next Activity

Only one Splinter of Evil can be active. Base the choice on your next activity rather than treating one Splinter as permanent for a build.

STEP 03

3. Advance Honor and War Plans

Build Honor in the associated activities, then use War Plans to unlock activity modifiers and upgrades for the iconic power.

STEP 04

4. Switch in the Largest Waking Nightmare

To move to another honor track and its rewards, obtain a different Splinter of Evil in the largest Waking Nightmare.

PRIORITY

Best Choice by Objective

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Helltides and Infernal Hordes: Terror

Choose Terror when the session centers on Helltides or repeated Infernal Horde runs.

Undercity and Boss Farming: Destruction

Choose Destruction for sessions built around Kurast Undercity and Lair Bosses. Boss efficiency still depends on keys and clear time.

Pit and Nightmare Dungeons: Hatred

Choose Hatred for Pit pushes or a block of Nightmare Dungeon runs.

Whispers: Keep the Current Splinter

All three Splinters support Whispers. Keep the current Splinter unless the paired activity also changes.

PROGRESS

How Progression and Rewards Work

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Eight Activity Modifiers per Honor Track

Each Splinter's honor track contains eight modifiers for its associated activities. Use the in-game track for exact values and unlock order.

Six Upgrades for Each Iconic Power

Each iconic Diablo, Baal, or Mephisto power has six upgrades.

Switching Also Selects a Reward Track

A different Splinter selects a different honor track and reward path. Blizzard's overview does not specify how existing progress is retained across switches, so this guide does not make that claim.

COMBAT

Iconic Powers and Their Risk

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The Power Triggers Periodically in Combat

Terror deals Fire, Destruction deals Cold, and Hatred deals Physical damage. The official overview does not publish exact intervals or multipliers.

You Become Vulnerable to the Matching Prime Evil

Bearing a Splinter makes you vulnerable to its matching Prime Evil. Account for that drawback when fighting the corresponding boss.

CAUTION

Common Mistakes

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  • You cannot activate all three Splinters of Evil at once.
  • Splinters of Evil select honor and activities. They are separate from the Soul Splinters equipped in up to three Jewelry slots.
  • Whispers are not exclusive to one Splinter; all three support them.
  • Do not treat unpublished hourly yields, fixed trigger intervals, or switch-progress retention as confirmed mechanics.
PATCH 3.2.1

Patch 3.2.1 Scope

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  • The official season overview confirms activity mappings, damage types, eight honor-track modifiers, and six iconic-power upgrades.
  • Switching requires obtaining another Splinter in the largest Waking Nightmare.
  • Power rankings, farming rates, and switch costs remain excluded until verified in game.
NEXT

Related Guides

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Season 15 Overview

Review the full route from season start through Waking Nightmares and Soul Splinters.

Helltide Guide

Plan the Helltide route paired with the Splinter of Terror.

Lair Boss Guide

Plan Lair Boss runs paired with the Splinter of Destruction.

The Pit Guide

Plan Pit progression paired with the Splinter of Hatred.

War Plans Guide

Review Honor points, sharing boundaries, and allocations.

SOURCES

Official Sources

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Blizzard: Season of Hell's Legacy Overview and 3.2.1 Patch Notes2026-09-22Blizzard: Season of Hell's Legacy Overview2026-09-22