Tried it on Fiora. I got destroyed. Felt as if I did no damage.
But then again, there was a Teemo on the other team and a IE, PD, Yommus Tryndamere. Tryndamere was literally 3 shotting people and destroying me as well. Funny because whenever I do some balls to the wall glass cannon build I get cc'd and blown up, yet my team appeared incapable of stopping Tryn.
Oh well, one game is a bad sample size but I'm already tempted to try something else. Black Cleaver is definitely good but I'm still on the fence about Hydra on Dominion. On Fiora anyway.