Mythic+ Dungeon Guide 2026 — Affixes, Rewards & Best Compositions

TL;DR: Mythic+ scales dungeon difficulty with random affixes each week. Higher Mythic+ levels = better gear from weekly chests. The target for most endgame players is Mythic+ 10 for the best-in-slot weekly rewards.

What Is Mythic+?

Mythic+ is an endgame dungeon mode that lets you push a standard dungeon to arbitrary difficulty levels. Unlike normal dungeons (which have fixed difficulty), each Mythic+ level adds a multiplier to enemy stats and introduces affixes — special modifiers that change encounter mechanics.

The mode is accessed by using a Dungeon Keystone, which drops from your weekly Mythic chest or from any Mythic 0 dungeon completion. Keystones can be upgraded by completing the dungeon in time (Timer Mode) or simply completing it regardless of time.

Mythic+ Scaling Table

Weekly Affixes (Rotation)

Two affixes are active each week, rotating on a predictable schedule. Knowing the current affixes before planning your run is critical at M+7+:

• Bloodthirst: Enemies gain 5% ATK per 10% HP lost (punishes slow kills)
• Void Aura: Enemies deal 10% of their attack as undodgeable dark damage
• Fortified: All non-boss enemies have +20% HP and +15% ATK
• Tyrannical: Boss enemies have +30% HP and deal +10% damage
• Raging: Enemies below 30% HP deal 50% more damage
• Necrotic: Enemy hits apply a stacking healing reduction (clears on boss kill)

Best Compositions for M+10

All-Vampire Burst Comp

In solo-style progression (solo dungeon mode), the Shadow Assassin build clears M+10 most consistently because its burst kills trash mobs before Bloodthirst stacks activate. Shadow Walk + Death Mark combo one-shots most non-boss mobs at this level.

Werewolf Sustain Comp

Pack Shaman is stronger on Tyrannical weeks where boss HP is inflated — the totem DoT approach is better for long boss fights than burst builds that burn all cooldowns on turn 3 and then stall.

Weekly Chest Rewards

Every week, your highest completed Mythic+ level determines what you receive in your Great Vault (accessible Monday 00:00–Sunday 23:59 UTC). Completing a higher key mid-week upgrades the pending chest reward:

• M+2 clear: 1× Epic item (random slot)
• M+5 clear: 1× Legendary item (random slot)
• M+10 clear: 1× max-roll Legendary item (can choose from 2 options)
• M+15 clear: 1× Mythic-rarity item (extremely rare — less than 5% of players reach this weekly)

Keystone Management

A failed Mythic+ run doesn't destroy your Keystone — it simply doesn't upgrade. You can attempt the same key multiple times. However, a timed completion upgrades it by +2 levels. The optimal strategy for players new to M+ is to start at M+2 on a dungeon you know well and push incrementally — don't buy or trade for a M+8 key you're not ready for.