Another Burst Mage Item

Hi friends. League could use some more items for burst mages who want to deal as much burst as possible in one sitting.

Hextech Amplifier +120 AP UNIQUE Passive: Every 1 Ability Power grants 0.1% increased damage dealt and 0.1% increased damage taken from all sources.

What this item does: Burst mages get an incentive for building pure ability power as opposed to cooldown reduction. It serves as another 120 AP item (currently there's just Deathcap and Spellbinder) that really amplifies damage in a way Spellbinder doesn't.