Hello, AU Daniel here. As a certified Ragna Lover, I can confirm that 5B 5C 5D Hell's Fang is THE optimal burst punish combo, that not only inflicts great damage in the game, but also uninstalls your opponent from Real Life.
Ahhh yes. Ragna The LowTierGodEdge. My favorite fighting game protagonist. P.S. One day you'll not dropping the burst punish combo. I will hope on that.