Why is Exhaust so Terrible?
A bit of a backstory; I picked Darius into Teemo top last game. I usually feel pretty confident about the matchup, but I honestly havent practiced enough with Darius lately, so I figured I would take Exhaust over my usual Ghost.
Managed to get first blood, but then wound up being useless later, even when Exhaust was up. So I look at the tooltip, and see that Exhaust slows an enemy champion down by 40% for a whopping 2.5 seconds. Ghost lasts for 10 seconds with only 2 seconds spent ramping up the MS steroid. Combine this with the fact Exhaust has a 210 second cooldown to Ghost's 180 second cooldown, and it makes me wonder why any role would take it outside of Yuumi who doesnt need Flash.