Copy of

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!

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!

At your convenience! Barriers are good in early
Armors scale better in late.

Buy left to right, or in any order
Feel free to grab more actives below!

If the enemy heals a lot, consider those
They all stack together.

To spice things up, you can grab actives! Return Fire is always useful
Metal Skin can be used when facing Haze/Wraith
Phantom Strike allows you to dive in, and with Unstoppable enemies cannot parry you!

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.