Of course, there isn't anything wrong with doing that, but you can draw more cards the other way
Whether its being combined with cards like The Red Terror or Quest for Pure Flame, or used a bit more fairly with commanders like Kalamax, the Stormsire or Kresh the Bloodbraided, All Will Be One should be a kill-on-sight card
Im definitely going to be slotting this in my Glissa, the Traitor and Osgir, the Reconstructor decks at the very least
With five strength and six willpower, Queen of Hearts, Capricious Monarch has the ability to deal some hurt to your foes - especially when shes able to challenge multiple times a turn using her ability
Goblins are particularly good at benefitting from this, as most of the Goblin decks have some sort of sacrifice subtheme