Ward of Dawn is the best it's been in D2 after the buff before Forsaken, with its overall strength (not in terms of buffs provided) being superior to D1. It's a very potent ability especially with Helm of Saint-14...the problem, at least in PvE, is that it's not seeing any use because there's really no reason to. Remember the Abyss at the start of Crota's End? That was a good place for it because at the end you had to hold your ground. The only thing that can break a Ward of Dawn, in PvP, are [i]some[/i] Supers and even those that can aren't even guaranteed to kill someone inside. Golden Gun can't (even with Celestial Nighthawk), Shadowshot can't, Dawnblade can't, and Stormtrance can't. The ones that can are Nova Bomb (both variants destroy the bubble but in all likelihood fail to kill anyone in it), Chaos Reach (although it needs to continuously fire on it for a long while before it breaks), Blade Barrage (you can still dodge the second barrage, the first is used up destroying the bubble), Thundercrash (also can be dodged if you see it coming, but will destroy the bubble if they land inside), and Hammers (takes nearly the entire Super to break it). If two people are using their Supers at the same time on the bubble that will likely break it but you're using two Supers to cancel out just one. Comparing it with Well is, as someone pointed out, kind of flawed. Well of Radiance heals rapidly and boosts damage but that rapid healing doesn't keep you from dying to either: a very large amount of damage received at once (Heavy Weapons, Supers) or a lot of damage from a lot of sources (I.E. in the second Thrallway you will still get mauled to death in a Well of Radiance if you don't fight back). Ward of Dawn is a nigh-invunerable safe-zone for you that requires another Super to break and no Heavy weapon will break it. Also: it's an option on the subtree and you're not forced to use it over Sentinel Shield. I personally prefer that subtree for healing on melee and Defensive Strike's buffs.