Why does Irelia's Bladesurge go on cooldown?
I'm an Irelia main top, and I find it infinitely frustrating when I Bladesurge(Q) to a minion that dies before I get to it, and my ability goes on cooldown. The Wikia entry says that if the minion dies within a short time (less than a second) of using the ability, the mana will be refunded and the cooldown will be refreshed. Why is this not actually happening?