Diablo II: Resurrected

Heart of the Oak runeword in D2R: Ko + Vex + Pul + Thul (4 sockets, Staves/Maces). +40% Faster Cast Rate. Level 25-4 Oak Sage (charges). S-Tier.

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Heart of the Oak

S

S-Tier — Best in Slot / Meta-Defining

4 Sockets StavesMaces Patch Patch 1.10

Rune Recipe

Ko rune Ko
+
Vex rune Vex
+
Pul rune Pul
+
Thul rune Thul
Insert in order: Ko → Vex → Pul → Thul

Get These Runes

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Stats & Properties

+40% Faster Cast Rate
Level 25-4 Oak Sage (charges)
+15% to Maximum Mana
+3 To All Skills
Replenish Life +20
All Resistances +30-40
Level 60-14 Raven (charges)
--- Rune Bonuses ---
Ko: +10 Dexterity
Vex: 7% Mana Leech
Pul: +75% Damage to Demons
Pul: +100 AR vs Demons
Thul: +3-14 Cold Damage (3 sec)

How to Socket Your Base

⚔️ Weapon
Ral + Amn + Perfect Amethyst + Normal Weapon
Adds 1-6 sockets (random). Cannot exceed item's max sockets.
👤
Larzuk Quest Reward — Gives max sockets on normal items. Best way to guarantee exactly 4 sockets on the right base.

Best Base Items for Heart of the Oak

Fastest attack speed mace (WSM 0), lowest str req (41). Universal choice for all casters. Cheap and easy to find. Note: Flails can roll up to 5 sockets — you need a low ilvl Flail for exactly 4 from Larzuk.
Budget: War Scepter — ⚠️ War Scepter socket warning: ilvl 1–25 = 3 sockets, ilvl 26+ = 5 sockets (jumps straight to 5, skipping 4!). For HotO (4os), you CANNOT use Larzuk on a War Scepter. Find a natural 4os War Scepter drop only.
📍
Where it drops Normal difficulty and up — Flails are common and available everywhere.
⚙️
Socket ilvl ilvl 26–40 = 4 sockets from Larzuk. ilvl 41+ = 5 sockets from Larzuk (too many for HotO!). Normal Cows drop Flails at ilvl 28 — perfect range.
🔧
How to socket Larzuk on a Normal-difficulty Flail (ilvl 26–40) gives exactly 4 sockets. ilvl 41+ Flails get 5 — don't use those. Cube recipe (Ral+Amn+Perfect Amethyst+Normal Weapon) gives random 1–4 sockets (safe but unreliable). ⚠️ War Scepter: Larzuk gives 5 sockets at ilvl 26+ (too many). Find a natural 4os War Scepter if using it as a base.
🗺️
Best farming spots Normal Secret Cow Level (fast, dense, good Flail drop rate — ilvl 28 falls in the 26–40 range for 4 sockets) · Normal Act 3 shops (Ormus/Hratli sometimes sell Flails) · Any Normal difficulty area (ilvl stays in 26–40 range for 4os Larzuk)
⚠️ Be careful with TZ Flails — Terror Zones scale monster levels up, which raises ilvl. A TZ Flail from Normal could exceed ilvl 40 and get 5 sockets from Larzuk instead of 4. Safest bet: farm non-terrorized Normal areas.

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