The rapid attack move is just like the freeze in place while knights dash through you and murder you move. I like the equipment upgrades because worthwhile stat boosts plus they look cool and even show up on the character which is a really nice touch. pro tip: maybe don't choose the rapid attack move. Or figure out how to time it to only use it when no knights are nearby.
I also like how the cards stack up to level up so level ups aren't wasted. Always feels like a worthwhile boost or gain.