How can I further optimize my heal cheese?

So I've got Mutual Agreement to copy Do Not Extinguish(x3) for a total of -30% Current HP and When the Star Falls for [Moribund] death protection, then I equipped The Long Night for more Genesis damage. Is there any way to further improve this strategy and possibly secure a two round clear?

So I've got Mutual Agreement to copy Do Not Extinguish(x3) for a total of -30% Current HP and When the Star Falls for [Moribund] death protection, then I equipped The Long Night for more Genesis damage. Is there any way to further improve this strategy and possibly secure a two round clear?