Manamune

2900
Increases Attack Damage based on maximum Mana

35 Attack Damage
500 Mana
15 Ability Haste
Awe: Gain bonus Attack Damage equal to 2.5% max Mana. Mana Charge: Strike a target with an Ability or Attack to consume a charge and gain 3 bonus Mana, doubled if the target is a champion. Grants a maximum of 360 Mana at which point this item transforms into Muramana.

Gain a new Mana Charge every 8 seconds (max 4).
Builds From

Tear of the Goddess Increases maximum Mana as Mana is spent 400 Caulfield's Warhammer Attack Damage and Cooldown Reduction 400 Long Sword Slightly increases Attack Damage 350