Heart of the Nayan Humans

Sorry, but aggro in more than two colors is rarely any good (in my experience). You will hardly be able to play CotP as often as you need him on turn 1, especially given your lands; actually, more than half the time you will hardly play anything on the first turn. My advice, either limit the deck to two colors, or change the deck somewhat. Aurelia for example is expensive, non-human (as are Firemane and Rampager) and is hardly aggro, if you are this far in the game you should have either build up a massive presence and won the game or been stunted in your development - thus already be losing. Well, I could be wrong about the purpose of the deck of course, but please concider the synergy between the cards. If this is really aggro, I would include a red one drop, either a human from Innistrad or the Gatecrash goblin; for a green one-drop, Avacyn's Pilgrim could help you get you otherwise unlikely ramp to stronger creatures, especially Silverblade with his hard casting cost. Instead of the dual lands you have here maybe include some shock lands from Return to Ravnica and Gatecrash (if you can afford it, they are rather expensive, I know... I don't have the money to spend on them, haha). In any case, good luck.
Oh, and one last thing. HUMANITY. WILL. PREVAIL! Peace now :D :P