I did 6p rank in arena against mostly 6p naruto with shira-fire main(nin reduce,reflect,10combo,sealing myst,fire bomb standart)-edo hiruzen-wb asuma (action in order). Most of 6p lineups die in 2nd round (with luck 6p naruto died in 1st one) even if I was lower on ini. Only problemable was when 6p was in combination with edo itachi because he had reflect and I got cc.