Mid Game Buy left to right. Skip Impr Cooldown & Arcane Surge if no flex slots, buy them later. Upon getting Arcane Surge, always Dash-Jump before using Goo Ball (4)! Don't forget: Get Actives some time after Phantom Strike.
Early Game Buy left to right. Resto Shot can be skipped if you aren't struggling. If you get parried a lot, get Reactive Barrier. Move your mouse over the items for details!
Mid Game Buy left to right. Sell Resto Shot for Hunter's Aura. If no flex slot, sell High-Velocity Mag for Spellslinger Headshots. Feel free to buy an active!
Post lane Order subject to change, L-R should be fine for the most part. Arcane is broken on ball right now. We buy Warpstone and Return fire as we max out ball. Can buy an armor after Magic Carpet/Spirit lifesteal. Late game we engage mainly with ball. try not to take damage/drop your spirit shields before using ball.