Yes, their Spell Book Builder gets better and better. I just wished they would include all the promo cards. Its not that they are neglectable, together they provide as much content as a large expansion.
I agree. I plan to include promo proxies in my personal games. You can't ignore a Ballista, a Fire Elemental, a Death's Head Scorpion or a massive orc archer (Bloodwave Greatbow)in your deckbuilding joy.