OP Class Hall Priest "once a day" powers in timewalking dungeons

[booty-o's]

***Tried searching the forums for anything related to this and couldn't find a post, sorry if it's been discovered before.***

Might not be anything game-breaking but I'm pretty sure this isn't supposed to be possible...

So I am unsure about the other classes, but the Priest tier 2 class hall upgrade "Altars of Blessing" (Altars of Blessing - Order Advancement - World of Warcraft) lets you acquire an item once a day that you can use in the Broken Isles. Listed below are the items that you could get (click links for more details):

Light Well Items-
Vial of Pure Light: Vial of Pure Light - Item - World of Warcraft
Essence of the Naaru: Essence of the Naaru - Item - World of Warcraft
Essence of the Light: Essence of the Light - Item - World of Warcraft
Blessing of the Light: Blessing of the Light - Item - World of Warcraft

Shadow Well Items-
Vial of Dark Shadows: http://www.wowhead.com/item=139448
Void Sphere: http://www.wowhead.com/item=139450
Swirling Void Potion: http://www.wowhead.com/item=139451
Rune of Darkness: http://www.wowhead.com/item=139461

These items work while in the timewalking dungeons. Some of them are admittedly not as great as others, for instance the items that summon the Faceless One or the Lightspawn which have over 25 million HP even in the timewalking dungeon is one that I find to be particularly OP as it is essentially an immortal tank for 10 minutes.

Once again, not sure if other classes have a class hall upgrade that offers items similar to this but it may be worth checking out.

*Should also be noted that you can have 1 Light Well item and 1 Shadow Well item in your inventory at the same time.