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Buy left to right
Resto Shot can be skipped if you aren't struggling
Move your mouse over the items for details!

Skip Impr Cooldown & Arcane Surge if no flex slots, buy them later
Don't forget: Get Actives some time after Phantom Strike.

Resistances work differently on Goo Ball (4) but still give you great benefits
Armors scale better in late game.

Buy left to right
Get more Spirit Items as you unlock flex slots
Otherwise, get Leech and Gun items
If you bought Magic Carpet, skip Mystic Reverb.

Grab one (Or multiple) of those if you want to empower your Goo Ball (4).

These items will help you have a better time against specific enemies or simply allow you to modify your gameplay to something that fits you more
Keep in mind that these items are NOT part of the build
Decay, Silence Glyph, Knockdown and Curse are powerful actives that can be bought to counter specific heroes.