Ability power decreased.
Like Oblivion Orb above, we want to push Morellonomicon a bit further toward its unique identity. In this case, that identity is the magic damage Grievous Wounds item. If the enemy team doesn't have significant sources of healing or regen, finishing Morellonomicon should be less attractive than sitting on Oblivion Orb and building something else.
COMBINE COST :  ⇒ 550 gold (total cost unchanged due to Oblivion Orb cost increase)
ABILITY POWER :  ⇒ 70
Mana refund passive removed. Flat magic penetration added. Grievous Wounds now applies to targets at all health. Ability power decreased. Mana removed.
Morellonomicon was supposed to be the anti-healing item, but when it was also the best mana and AP item and present in every game, it forced us to make the item more about the stats and less about the unique output it provided.
TOTAL COST :  ⇒ 3000 gold
| BUILD PATH :
||[Lost Chapter + Fiendish Codex + Amplifying Tome + 665gold ]
||Oblivion Orb + Blasting Wand + 650 gold
ABILITY POWER :  ⇒ 80
MANA No longer grants 400 mana
UNIQUE COOLDOWN REDUCTION No longer grants 20% unique cooldown reduction
UNIQUE PASSIVE Touch of Death: +15 flat magic penetration
UNIQUE PASSIVE Cursed Strike: Magic damage dealt to champions inflicts them with Grievous Wounds for 3 seconds
UNIQUE PASSIVE Magic damage dealt to champions below 35% health no longer inflicts them with Grievous Wounds for 8 seconds—this was replaced by Cursed Strike above
UNIQUE PASSIVE Enemy champion takedowns no longer restore 20% of your maximum mana
Gives mana instead of mana regeneration. Now restores mana on kill or assist.
For the duration of their existences, Morellonomicon and Athene’s Unholy Grail have had significant overlap, sharing three stats, two component items, and the same distinction of offensive mage items with best-in-slot mana regen. While they go about defining ‘offense’ in different ways
TOTAL COST : [2400 gold] ⇒ 2900 gold
BUILD PATH : Lost Chapter + Fiendish Codex + Amplifying Tome + 665 gold
ABILITY POWER :  ⇒ 100
MANA REGENERATION [100%] ⇒ 0%
GOT THE RESET Kills and assists restore 20% of your maximum mana
CAN’T STACK ME : 20% cooldown reduction is now Unique
GRIEVOUS WOUNDS THRESHOLD : [Inflicted on enemies below 40% health] ⇒ 35% health
GRIEVOUS WOUNDS DURATION : [5 seconds] ⇒ 8 seconds
Collateral buffs from our Frost Queen's Claim investigations. Specifically, it seems like we were overvaluing what those unique passives were doing for the item. Having cheaper alternatives should help with build diversity.
COMBINE COST : [765 gold] ⇒ 615 gold
TOTAL COST : [2550 gold] ⇒ 2400 gold
TOTAL cost : [2300 gold] ⇒ 2550 gold
BUILD path : Fiendish Codex + Forbidden Idol + 435 gold
Recipe includes another Amplifying Tome for smooth purchasing.
- "We're trying something out here where picking up a Codex + Book on your first back can be about comparable to going for that 1200 gold NLR. ARE THESE CHOICES MEANINGFUL? You tell us."
- TOTAL COST : Unchanged
- RECIPE :
Fiendish Codex + Forbidden Idol + 880 gold ⇒ Fiendish Codex + Forbidden Idol + Amplifying Tome + 445 gold
- "Right now Morellonomicon is a super cost-efficient item for it offers, so we're pushing it to be more on-par with its mana regeneration alternative - Chalice."
- COMBINE COST :
680 gold ⇒ 880 gold
- TOTAL COST :
2100 gold ⇒ 2300 gold
- ABILITY POWER:
75 ⇒ 80
- MANA REGENERATION:
12 mana per 5 seconds ⇒ 10 mana per 5 seconds
Amplifying Tome + Faerie Charm + Fiendish Codex + 765 gold ⇒ Fiendish Codex + Forbidden Idol + 630 gold
- TOTAL COST: Unchanged (2200 gold)
- Name changed from "Morello's Evil Tome" to "Morellonomicon"
- Cooldown Reduction is no longer Unique
- Unique Active Removed
- New Unique Passive - Dealing Magic damage to an enemy champion below 40% health inflicts Grievous Wounds to them for 4 seconds.
- Cost reduced from 2,330 (440) to 2,200 (435)
- Cooldown reduction increased to 20% from 15%
- Morello's Evil Tome added