Poison isnt that great unless you have really good healing and defense buffs and its no fun , plus I win in ranked battle most of the time whether they go first or not, Im currently trying a non control team for azure fang which is :
Gaara 4*
Asuma 4*
Naruto 3*
Water main with healing jutsu and passive , chakra blade, healing tips and soul absorption and Kyuoshoku deer. This squad hits really hard if you use naruto's jutsu when he has 2 clones out and heal after they did their jutsus first . Once you reach round 3 Asuma will be able to spam his jutsu because each time a clone dies you recover 10 chakra points and you can sometimes use gaaras ult on the second turn.