When detailing the modifiers for exotic quest Avalon on Legend difficulty, the modifier Mettle just say that it has a fixed level of difficulty, but not specifying on what light level is fixed, as it is stated in other activities. I've tried it with lower light level, and it surely gets harder. Being with higher light level makes it easier. So, it is not an absolute fixed difficulty like those that raise your light level to match the activity. I understand it means that light level makes difference up to a cap, but the description doesn't detail which is that cap. Please, can Bungie confirm what is the cap level for the Mettle modifier for Avalon on Legend difficulty?