You can speak with Andre the Blacksmith to allot these Estus Flasks however you like, even opting to go with only one type of Estus Flask (by setting the other to zero) if you so choose. While the normal Estus Flask still replenishes your health, the Ashen Estus Flask replenishes your FP meter, which is essentially your magic and special attack meter.
![dark souls 3 boss order dark souls 3 boss order](https://i.redd.it/ur29eonupzw41.jpg)
If you just cleared an area, you may not want the enemies to respawn just yet. Any time you rest at a bonfire enemies respawn, with very few exceptions.
![dark souls 3 boss order dark souls 3 boss order](https://cdn.wccftech.com/wp-content/uploads/2021/06/WCCFeldenring4.jpg)
This means you can block any physical attack and you won’t sustain any damage so long as you had enough stamina to block the attack.