You mean when I was Ragna? I am normally pretty aggressive with Hakumen but with Ragna I just do the "wait and see" neutral approach usually. But I like to hover just outside of Tager's range, so it's not running away like that.
It works pretty well on Hakumen too.
Nombre, you should still try to 720. Good players get hit by them too, and there are plenty of places where they will be gauranteed.
Like let's say Ragna rushes up to you while you're down in the corner and throws out a Dead Spike while he's magnetized. He just fucked up. You can get up and 720 him and he can't do anything about it.
Just don't do it from panic, do it with precision and a plan.
Also don't be afraid to use tick throws and 360s.
Oh and then there's just having punishes. Block Inferno Divider > go nuts, etc.