With bastion of light would it be possible to have the duration only tick down while the guardian isn't in the area and when the guardian re-enters the area the duration is reset.-As part of a later trait
And the cooldown would be used to move it to a new location if necessary rather than just reapply it in the same place every 20 seconds as depending on the animation time this could become slightly annoying.
Make Cataclysmic Shout feel more impactful e.g. a powerful debuff or buff for so many seconds which could tier up with number of targets hit
Would it be possible to have a trait deeper in the tree that restores the AOE light damage+ heal on marked/bastion targets on hit?-maybe increase it potency compared to before with ranks or have it cost a base 5 with only a single rank
What is more than likely going to happen with BoL is the duration will be 20s and the cooldown 20s or 15/15. Depends on how it fits in the rotation. The animation would likely be something very, very short because you are literally just enforcing your will over an area. The damage will be tactical too.
Also, one thing that I really need to look at is the corruption removal on Improved Sting. It really feels too often. We might want to put it on something with a little longer cooldown.