The Dire Sanctum (West Wing — Corrupted Library): how to beat

A guide to the whole place: modes, waves and bosses in order. Every boss has its own deck and turn cycle — the numbers come from the game. Loot is in the item atlas and on the The Dire Sanctum (West Wing — Corrupted Library) page.

In short

• Dungeon, levels 39–49, bosses: 4. Party — 3 heroes: tank, healer, damage dealer.
• Modes: Heroic (at level 60), Normal (at the place’s level, 39–49), Keystone +10 (Mythic+, at level 60).
• Cold — 4 of 4 bosses (on heroic and in keystones); a test strike — every boss, except in normal mode. These modes cannot be cleared without a tank and a healer.
• Normal mode has no cold, no test strikes and no “no tank — through shields” rule.

Bosses in order

1. Shadowmor, the Ghostly Librarian

Level 39. In detail — Shadowmor, the Ghostly Librarian: how to beat.

• 2 phases: “Lending Desk” → “Cleaning Day”; 7 cards.
• “The Reading Room Is Unheated” cold: every enemy turn, everyone through shields — heroic 880, keystone +10 740 to each before Hardiness. No cold in normal mode.
• “Lifetime Membership” test strike — on boss turns 8 and 16: heroic 7,000, keystone +10 8,000; 40% weaker with a defensive card on yourself.
• Mechanics: card freeze (“Silence, Please”); burns a card and heals (“Confiscated for Being Overdue”); crystal burn (“Fine”); opening: more damage to the boss (“Went for the Ladder”); boss empower (“Cleaning Day”).

2. Stone Gatekeeper Illyrium

Level 42. In detail — Stone Gatekeeper Illyrium: how to beat.

• 2 phases: “No Entry” → “Cracked”; 7 cards.
• “Door Wide Open” cold: every enemy turn, everyone through shields — heroic 820, keystone +10 680 to each before Hardiness. No cold in normal mode.
• “No Unauthorised Entry” test strike — on boss turns 7 and 15: heroic 7,000, keystone +10 8,000; 40% weaker with a defensive card on yourself.
• Mechanics: hit on everyone (“Stones from the Cornice”); charge (“Closing the Hall”); opening: more damage to the boss (“The Doors Jammed”); guard: less damage to the boss (“Turned to Stone”); boss empower (“Cracked”).

3. Spellslinger Ghost Ka'Driss

Level 46. In detail — Spellslinger Ghost Ka'Driss: how to beat.

• 2 phases: “By the Shelf” → “Didn't Return the Book”; 7 cards.
• “The Wind Goes Through Him” cold: every enemy turn, everyone through shields — heroic 880, keystone +10 740 to each before Hardiness. No cold in normal mode.
• “Book off the Shelf” test strike — on boss turns 8 and 16: heroic 7,000, keystone +10 8,000; 40% weaker with a defensive card on yourself.
• Mechanics: crystal burn (“Pulls a Crystal”); guard: less damage to the boss (“Faded Away”); opening: more damage to the boss (“Reappeared”); hit on everyone (“Rustle of Pages”); boss empower (“Didn't Return the Book”).

4. Alzzin Fel-Face, Demon Keeper

Level 49, final boss. In detail — Alzzin Fel-Face, Demon Keeper: how to beat.

• 2 phases: “Stoking” → “Everything He Burnt”; 9 cards.
• “The Stove Gives No Heat” cold: every enemy turn, everyone through shields — heroic 600, keystone +10 500 to each before Hardiness. No cold in normal mode.
• “Dustpan to the Head” test strike — on boss turns 9 and 17: heroic 7,000, keystone +10 8,000; 40% weaker with a defensive card on yourself.
• Mechanics: summon with a task (“Eye Above the Stove”, “From the Stove”); damage over time (“Burning Pages”); buff removal (“I'll Warm Up on Yours”); charge (“Threw in More Tomes”); opening: more damage to the boss (“The Stove Smokes”); boss empower (“Everything He Burnt”).

General rules

How to read the guide and the rules of a fight against a boss with a deck — How to beat: every boss; every mechanic in detail — Boss mechanics.