So you bought Drums of Endurance on Ember Spirit..

Look, there's no easy way to say this but, Drums of Endurance on Ember Spirit is in no way providing any synergy to the hero.

* Attack speed.. Why?
Ember Spirit is _traditionally_ the kind of hero you utilize Sleight of Fist on. You don't need attack speed, you need proc's, crits, orbs, cleaves..

* Movement speed.. Why?
Ember Spirit is _highly_ maneuverable hero. You don't need that ♥♥♥♥♥♥ 5%/10% movement speed.

* Misc. stats
Yeah, there's some mixed stats in there. Great. Way to effectively prolong your downtime until you've got the items you _actually_ need.

What Ember Spirit Needs?
* Cleave (Battle Fury, BTW getting this before 20 mins is crucial)
* Crit (Daedalus)
* Proc's (Maelstrom, not necessarily Mjollnir)
* Orbs (Skadi)
* Damage (Divine Rapiers)

What a situational, more protective Ember Spirit needs?
* Linken's Sphere
* Heart of Tarrasque

If you really really want to buy drums, go ahead..