Diablo, Lord of Terror - summon materials and loot table - Diablo IV Season 15

Diablo, Lord of Terror is a Diablo IV Prime Evil - Waking Nightmare (largest tier / Capstone) found in Beneath Tristram Cathedral. Summon it with 0x None - quest/story gated.

Summoning materials

• 0x None - quest/story gated - from Unlocked by progressing the Season of Hell's Legacy seasonal questline (Deckard Cain's lost soul guides the player through the recreated Diablo II Act IV-style nightmare)

Details

Tier	Prime Evil - Waking Nightmare (largest tier / Capstone)
Location	Beneath Tristram Cathedral
Requirement	Story-gated; pinnacle Capstone replay from Torment X+ (does not scale down)

Tips

Only the largest-tier Waking Nightmares (Diablo, Baal, Mephisto) are replayable multi-level Capstone dungeons after the story; smaller Waking Nightmares are one-room open-world encounters or medium dungeons recreating other classic moments (about 33 total, reviving ~20 classic bosses including Nihlathak and the Maggot Queen).

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