2
hopeful eidolon1
favored hoplite1
phalanx leader1
cavalry pegasus2
leonine snarecaster1
fleecemane lion1
leafcrown dryad2
wingsteed rider1
chronicler of heroes1
nessian courser1
setessan griffin2
warrior's lesson2
god's willing1
battlewise valor1
last breath2
chosen by heliod1
ray of dissolution10 plains, 7 Forests
You need the Lion, Chronicler, Courser, and the two Lessons. The only blue card I'd really like to play is the Hoplite, but it's not worth it. I'm not even sure about the Griffin, but there are no early drops worth playing over it. You might go to 16 lands, but you need to get to four quickly, so I think it's better to go with 17.