With non-DLC owners who don't have Kokonoe... Ragna is your best friend. I'm refering to his poking and the fact that his DRIVE HEALS HIM! With AI down you can easily pick-up 10-30% of your missing HP and usually poke freely with little resistance. In conjunction with red blood sucker you can sustain yourself far better then the majority of the blazblue cast. Combo that with a distortion seal and you got a rather peaceful and relaxing run until your unlimited fights, which you should be starting with full HP.