Fiendish Codex

Epic

850 g

Summoner's Rift ARAMArenaNexus Blitz URF One for All Swiftplay Ultimate Spellbook

No Ultimate Spellbook-specific changes; identical to the Summoner's Rift version.

Patch history

26.14 · Jul 15, 2026

No longer builds into Hextech Rocketbelt.

26.11 · May 28, 2026

No longer builds into Imperial Mandate.

26.1 · Jan 8, 2026

Now builds into Redemption.

25.10 · May 14, 2025

Now builds into Hextech Rocketbelt.

14.19

Total cost reduced to 850 from 900.
Combine cost reduced to 200 from 250.
No longer builds into Malignance and Morellonomicon.

31 older patches

14.6

Ability power reduced to 25 from 35.

14.1

New Recipe: Amplifying Tome + Glowing Mote + 250 = 900.
Old Recipe: Amplifying Tome + 465 = 900.
No longer builds into Banshee's Veil, Liandry's Anguish, Lich Bane, Night Harvester

Stats

+25Ability Power
+10Ability Haste

Recipe

+

+200 g = 850 g

Builds into

,

Zhonya's Hourglass

.

Now builds into Archangel's Staff, Cryptbloom, Malignance, Morellonomicon, Riftmaker, Staff of Flowing Water.

13.10

Now builds into Imperial Mandate.

13.6

Now builds into Nashor's Tooth.

12.12

Now builds into Night Harvester.

12.2

Now builds into Lich Bane.

11.23

Now builds into Horizon Focus.

10.23

Updated icon.
Ability haste increased to 10 from 0.
Unique cooldown reduction reduced to 0% from 10%.
Now builds into Cosmic Drive and Liandry's Anguish.
No longer builds into Athene's Unholy Grail, Nashor's Tooth, Runic Echoes, and Twin Shadows.

9.1

No longer builds into Deathfire Grasp, due to the Nexus Blitz being no longer available for play-testing.

8.16

Re-added back to the recipe for Deathfire Grasp.

8.11

Added to recipe for Runic Echoes.

8.9

Ability power increased to 35 from 30.

8.4

Added to recipe for Twin Shadows.
Removed from recipe for Morellonomicon.

7.18

Removed from recipe for Frost Queen's Claim.

7.9

Added recipe for Banshee's Veil.
Removed recipe for Abyssal Scepter.

6.9

Total cost increased to 900 from 800.
Combine cost increased to 465 from 365.
Ability power increased to 30 from 25.

5.22

Total cost reduced to 800 from 850.
Combine cost reduced to 400 from 450.
Ability power reduced to 25 from 30.

5.14

Added to recipe for Lost Chapter in Black Market Brawlers.

5.12

Removed from recipe for Magus.

4.20

Added to recipe for Magus.

4.5

Added to recipe for Will of the Ancients.

3.1

New recipe: Amplifying Tome + 385 = 820
Old recipe: Faerie Charm + Amplifying Tome + 385 = 1000
Removed 6 flat mana regeneration.
Added to recipe for Banner of Command and Deathfire Grasp.

V25.S1.1

Now builds into Bloodletter's Curse.

V1.0.0.154

Added to recipe for Blackfire Torch.

V1.0.0.152

New recipe: Faerie Charm + Amplifying Tome + 385 = 1000
Old recipe: Meki Pendant + Amplifying Tome + 300 = 1125
Flat mana regeneration reduced to 6 from 7.

V1.0.0.140

Added to recipe for Athene's Unholy Grail.

V1.0.0.139

Total cost reduced to 1125 from 1245.
Combine cost reduced to 300 from 420.
Removed from recipe for Deathfire Grasp.

V1.0.0.111

Added to recipe for Morello's Evil Tome.

V0.9.25.24

Added to recipe for Nashor's Tooth.

June 6, 2009 Patch

Fiendish Codex:
+30 ability power.
+7 flat mana regeneration.
Unique passive: +10% cooldown reduction.

June 26, 2009 Patch

Total cost increased to 1245 from 1215.
Combine cost increased to 420 from 390.

Available in

Summoner's Rift · URF · One for All · Swiftplay · Ultimate Spellbook · ARAM · Nexus Blitz