the lands base is good, but theres a lot of better creatures you can throw in there. your one drops are pretty good, for 2 drops consider thalia champion of thraben, daring skyjack, sunfire paladin, and
lightning mauler. for 3 drops consider
frontline medic and
boros reckoner. take out odric, and silverblade doesnt work well with a smaller creature deck like this. for four drops look into
hellrider and tajic. with 24 lands you might even get a few thundermaw hellkites. if your looking to still the game until assemble builds up,
nearheath pilgrim gives great
lifelink.