The issue with Oblation is it doesn't have enough impact.
Dark Mind is secretly good because 20% is a fair chunk of mitigation, especially for a 60s cooldown, it honestly makes it one of the best skills in high end play for Dark Knight. I get why people who play the class casually hate it, as dungeons dont even really use it, but its a big reason why DRK has been prefered this tier outside of damage output. A rampart 60 seconds is pretty good.
On the other side, 10% mitigation for a 60 second cooldown isn't that good, this is never a mitigation you'll use alone, and if I'm being honest it wont even be good enough to pair it with just one other mitigation. The only time I use this is if Im tanking something that needs 3 pieces of mitigation which is incredibly rare.
Its not useless, its just really underwhelming. Yeah you can put it on an ally in a tight spot, but again, its 10% mitigation and competes with TBN. Its not going to be the difference maker that saves them, while TBN might be. And yeah getting two stacks of Oblation is nice, but its so low impact that I dont ususally ever find myself in a tight spot thinking "Oblation will save me!" so I actually tend to just neglect this skill outside of like...two fights in this game currently.
I'm not really into the idea of bumping it to 15%, I'd much rather see a heal utility or anything else really put onto it as I actually do not believe DRK needs any more raw mitigation. If it was instead a self heal or ally heal skill that offered 10% mitigation as a bonus, it would be pretty good.
