long range, just control where ragna goes with 4C and j.C. straight up super turbo style poking.
mid range is where both of you have your best options. his 5B is still really good but you can use your 5B to trade with it/sometimes beat it (this is of course up to your discretion, based on how much health you have left etc). 5A, 6A, hotaru, renka and tsubaki are really your friends here though.
close up, same old song and dance as ct. just block and ib into counter when you know you can.
and whatever you do, don't try to burst belial edge.