This mainly focuses around general stuff the flail.
A combination of these suggestions would be appreciated.
First of all his passive with the damage stack shouldn’t be affected by temporary health (kinda defeats the purpose if you go to town with ol’ slappy and fill your hp ever wave)
The talents No Surrender! and Flagellant shouldn’t be in the same category as his damage output is kind of below average when at full health and a little above average when low. (he should be high risk - high reward at low health)
Grimoires should not readjust the 100% healthbar for the passive. They should count towards it.
Incease the movement speed. I’ve never used a weapon like this but i’d imagine you would rather have to move with the momentum of that flail instead of planting yourself into the ground and swinging it around you. (that jump on the 3rd strike always throws me off)
all attacks should be armour piercing not just swings 3 and 4 that makes no sense.
Edit: added some stuff