With this hand, I would lead with the Dark Ritual on turn one, as they are unlikely to counter it
This can work in both control or aggressive decks
I can only think of a handful right now (Djinn Illuminatus, Harness the Storm, Frankie Peanuts, Cloudstone Curio, and Tooth and Nail) and there have been times when Spikes have messed up Tooth and Nail by grabbing some game ending combo or accelerating it off major Urzatron lands or other quick mana ramp, and then use something that prevents it from being countered (like Boseiju, Who Shelters All)
We'll take a look at some decks in a few minutes that scored higher, but Feline Ferocity is still a strong addition to the stable of Commander
However, its potential will be tested in Legacy, where efficiency is paramount