I don't know...I would say that Lost Knight as he is right now was the most uninteresting card presented in Wave 3. He is a Morningstar Accellerator with different purity and slightly different stats. As he is, I see no reason to pick him instead of cavalary paladin in FD/Ex decks. And in demon tribal, Splatterer has actually similar stats (2 less defense, 2 more attack. Not exactly the same, i know, but still pretty close!), so even making him a demon doesn't seem to make him that much better imho (although it helps of course).