u/Egyptiantelephone

Hi, this a build where you go insanely fast, can never be killed, and provide immense utility to your team.

Aery
Manaflow
Celerity
Gathering storm/Waterwalking
Tonic/cookies
Approach velocity
Ability haste
MS
Scaling HP

Tear
Ionian Boots of Lucidity
Cosmic Drive
Whispering Circlet
Situational after core:

Frozen heart, Sofw, Ardent, Moonstone, Force of Nature, Dead Man's Plate, Rocketbelt, Oblivion orb, etc.

Ghost heal always, Bloodsong or dreammaker, E max into W max but i can see q max second working as well

With the movement speed, hp and ability haste, as long as you ult before getting cc chained, no one will be able to kill you. If you want to play it midlane or even top then go Luden's > cosmic with double adaptive and Q max for waveclear.