It's been a while and I know back in the day Repentance saw decent use to restore stam in dungeons after trash packs, but...I'm not the only one who thinks this thing could use some really vigorous, hard love, right? Radiant Aura is a very, VERY boring 60 second buff and nothing else, something I think should never exist in more action-y games just because of how passive it is. Dragon Knight's group wide weapon/spell damage buff has a similar issue, imo, in that it might be useful in saving some 'build power' resources for group members in coordinated groups who can now put those resources elsewhere cause someone else covers those buffs for everyone, but it's just...Boring to use, both alone/solo, in PvE, in PvP, open world..
I'm not sure how much use it sees, but Warden has Enchanted Growth, a whole gosh darn fangled AoE heal similar to restoration staff's Blessing of Protection. This might be a good spot to put major brutality/sorcery, and perhaps a short HoT or something.