Seeker's Armguard

Increases Armor and Ability Power

20 Ability Power
15 Armor
Witch's Path: Killing a unit grants 0.5 Armor (max 15).
Builds From

Amplifying Tome Slightly increases Ability Power 435 Cloth Armor Slightly increases Armor 300
Builds Into

Zhonya's Hourglass Activate to become invincible but unable to take actions 50