Facet of hope states that while having elemental buffs you class ability recharges faster, however, it does not do anything, no matter how many buffs you have active.
Please look into it
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I feel like facet of courage doesn't work a lot of the time as well. When I usually need two hits with combination blow (without the multiplier active) to kill a red bar. The facet sometimes makes it one hit and then sometimes it still takes two hits on the same enemy.