User blog comment:Zoroark555/Dungeon Doggy Deck/@comment-6218208-20140704031940

Something you should keep in mind is that Strohl Bird and Pillar of Fire are both only 3 copies per trial deck, and they're exclusive to it. If you want to be running those at 4 each, then you're going to either have to get another copy of the trial deck, or find some way to get that fourth copy.