I

Rasante Kugeln

Good item so you can deny something on lane, you can sell it later for extra slot

II

Aktiv

Schutzwache

For support role (when cast on your mate, cooldown is reduced by half)

I

Veredeln

Mystische Erweiterung

Its easier to stun enemy heroes with more range, right?

I

Zusätzliche Aufladung

Use your 1st to clear waves faster or do more dmg

I

Zusätzliche Ausdauer

2 stamina = pain

II

Arkane Verstärkung

Great item, use it more for the ability buffs

II

Aktiv

Fluch der Langsamkeit

Use it to stun enemy heroes with your 3rd

IV

Aktiv

Wirbelnetz

This is where the fun begins, use it with your 3rd

III

Aktiv

Kultopfer

Great buffs, if you don't have extra slot just skip it

III

Schnelle Aufladung

Extra charge for your 1st

III

Panzerschreck

Awesome item for dmg

III

Trophäensammler

Could be used over Cultist Sacrifice, if you want more ms and passive souls, spell range (buy this before vortex web)

II

Heilungsfluch

Good early anti-heal

IV

Magiebrand

Great anti-heal + bonus dmg

IV

Transzendente Abklingzeit

For Vortex Web cooldown

IV

Veredeln

Aktiv

Echo-Splitter

More stuns, more fun

IV

Eskalierende Bloßstellung

More dmg from your Vortex Combo

IV

Grenzenlose Magiekraft

Last priority, good spirit buff

IV

Aktiv

Göttliche Barriere

For support role, you can buy it whenever you need this

III

Größere Erweiterung

You can skip this and buy Echo Shard if you want

IV

Aktiv

Auffrischer

For your ult, support role

IV

Schriftrolle des Blitzes

Buy this with refresher

III

Gegenzauber

In right hands you can dodge everything (almost) )

III

Aktiv

Schwächungs­entferner

Against heroes such as Infernus, Bebop, Shiv

I

Monster-Kugeln

If you need to clear waves or farm faster

I

Widerstand

Against melee heroes on lane

III

Meisterhafte Ausdauer

Good for movement

II

Stiefel des Dauerläufers

2nd good movement item

III

Aktiv

Welle der Verstummung

Early 'curse'

III

Aktiv

Niederschlag

Can use it with your 3rd

III

Aktiv

Verfall

Take if enemy have tanky heroes

IV

Aktiv

Fluch

Against annoying heroes such as Lash, Dynamo, Haze

IV

Aktiv

Geißel

For your front heroes