While this IS an exploit, it’s not super game-breaking. However it could give you that little extra boost you need in PvP or PvE. Using the Burning Blossoms you receive from honoring or dishonoring the fires across the game you can get a 3% crit buff.
The trick is to apply a flask of your choice, 1000 strength, agility, intellect etc. Then go to one of the fires and use the Burning blossom. To get the 3% Crit buff. You will now have both buffs. You must do it in that order. If you choose to use a flask second you will override the Crit buff since its a Battle Elixir Buff.