How Do I Make My Fiend Last Longer?

[Tiptoe]

I've seen a few players running around with a summoned fiend. He seems really cool, so I decided to try him for myself. But my fiend only lasts for 30 seconds .

The folks I watched playing had their fiends for much, much longer (he seemed to last for several minutes before they had to re-summon him). Am I missing something? Have I overlooked a skill (or maybe some gear) that makes your summon last longer?

Thanks guys.

 

[Trancedock]

This passive in Witchcraft

 

[Tiptoe]

Aha! I knew I was missing something. Thanks very much Trancedock .