Firemain setup :

x1 - x - x
itachi - fireM-kage gaara
x2 - x - x

skill 23122
summon chamelleon
x1 position : tanky ninja - naruto, hinata, sai
x2 position : healer or special ninja - kabuto, tsunade sannin, hidan

team specialty : 2nd turn dual aoe (fireM+kage gaara) plus itachi barrier over write auto kage barrier (like that smexy mei poison barrier ;p )