Because button bashing is key after the dodging. Most of the enemies move so fast you don't have time to unleash all these lovely combos you can do on the loading screen. I think I only bought one or two-ish new attacks because I could see when trying them that they would be fucking useless in real battle.
As soon as I was able to get to 30k I spent it on a Witch Heart, any change went on Red Hot Shots and maybe a lolly.
The only order thing I did went as follows, blue lightning claw guy before red fire claw guy and small baddies before biggies.
Dodge, hopefully activate Witch Time, weak weak, strong strong strong.