This is my current file. I am not sure if those grenade SS are good for a shrine knight deck. It's a pity I do not have Ridrea.
I do have some problems in the opening. Sometimes Cath, Oseon and sage die in the same turn and some SS are wasted.
Also is there any suggestions for the other cards? I am considering to replace 3rd by 4th for range buff is really halpful for the absolute wall-zero combo. But I am also saved by the 3rd for many times.