That which blessed life upon to you shall also be that which will cast the shadows of death upon you
|Stats||+70 ability power|
|Passive||Unique: +40% magic penetration|
|Menu||Magic > Ability Power|
|Item cost||2295g (1000g)|
- Combining Arcane Knowledge Arcane Knowledge yields 46% magic penetration, rather than 50%, because percent magic penetration stacks multiplicatively. with
- Assuming that you only have 40% magic penetration from , any magic damage you deal will increase by approximately 10% of the tooltip indicated damage against an opponent with magic resistance more than 0.