Ember spirit build

I know, that's why I chose DK, because the higher the Armour, the less the Reduction hurts. At that point, he's the only Hero who takes more Damage from a Crystalis Crit than from Corruption. Even at lvl16 most Heroes will need to pick up an Item that gives them extra Armour to make Crystalis more cost efficient than a Desolator

Tim got it right:


This is it. Take the Desolator when you're fed and your team is mid game oriented, so you can have armor reduction and end the game as soon as possible; the Battle Fury is a "backup plan" for when you're sure you'll be going into late game and you need something to keep your damage high. 35 minutes in a Desolator probably gives more damage than a Battle Fury, but after the 45 minute mark having two BFs is arguably better than having Deso and Daedalus (unless you're so fed you can get the Daedalus 5 minutes after the Deso).

By the way, it's better to pick up two BFs before the Daedalus in my opinion. I tested it more than once and it never disappointed me.