It really shouldn’t mess up your keybinds or muscle memory. Instead of having a slice n’ dice attack speed buff up, you have buffs from roll the bones up. It’s one button.
The only difference is that you have to keep refreshing roll the bones to get optimal buffs, whereas you’d just use slice n’ dice when it was about to fall off.
I’ve played with both. Literally, all you need to do instead of build combo points > use slice n’ dice > build combo points > use finishers is build combo points > roll bones over and over at 4-5 points until you have the right buffs > build combo points > use finishers.
They’re both the same basic ability/concept. It’s a finishing move you use to give yourself buffs.
And yes, roll the bones is much better DPS than slice n’ dice.