- 80 ability power = 1740
- 100% base mana regeneration = 500
- 20% cooldown reduction = 600
- is gold efficient without the passive.
- item with an easy build path that offers a handful of useful stats early on. Due to its high ability power,cooldown reduction and moderate mana regeneration, it is often "rushed" by casters with short cooldowns who like to spam their abilites while being able to sustain such cost, like Karma, Lux, and Xerath. It is also a cheap counter to champions who rely on healing, such as Aatrox, Dr. Mundo, Swain, and Vladimir. is an inexpensive
- You can use to amplify Grievous Wounds time.
- Some players may desire magic resist on top of their mana regeneration, which does not provide. These players usually purchase instead, as it provides a higher amount of mana regeneration (due to its passive, Mana Font) and some magic resist, at the cost of some ability power and a higher cost.
- magic damage, including magic damage from on-hit effects.
passive applies to all
- Common examples of this are Arcane Blade autoattacks. , and
- This item is named after Ryan "Morello" Scott, the Lead Champion Designer at Riot Games.
- The item was previously called Morello's Evil Tome. It was renamed to Season Three as a reference to both Morello and the , the fictional "Book of the Dead". in
- The icon for the item prior to V3.14 has the Chinese/Japanese character for "demon/oni" (鬼; ki/oni) on the front cover.