Praxis Houndmaster Aggro

A Praxis Aggro deck trying to utilize some new cards from Revelations. D'Angolo Houndmaster, Raging Jackal, Malaga Amphitheatre, and Searing Strike have all been performing well. A lot of the cards higher on the curve have charge to try to maximize the number of situations in which we can attack with two creatures, and Jekk is there because he's a good card.
There have been situations where searing strike is quite bad, so I'm considering going down to 2, although I don't know what I'd put in its place. As with most of my decks, the market is just a collection of cards I thought might go well with the deck. Suggestions and comments welcome.