- is gold efficient without its passive.
- You can use to amplify Grievous Wounds time.
- 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, former Lead Champion Designer at Riot Games Inc.
- 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.