Does SGE need potency buffs?

[HyoMinPark]

It needs a big buff at low levels in healing potency. It can't keep up with healing at level 50 and below dungeons compaired to the others. I did a level 50 hard dungeon tank pulled 3 groups and could keep him healed fast enough. To me it's a trash healer and only does good dps.

Sounds less like SGE is a trash healer and more like you got a trash tank. SGE can heal level 50 content just fine. It may not have many of its fun abilities, but E.Diagnosis while running, Kardia, and Druochole should be more than enough. You should also have Physis that you can pop for an extra HoT - pair it with Kerachole for mitigation (just because it doesn’t have the HoT at level 50 doesn’t mean you can’t use it to mitigate incoming autos on the tank).