New Redemption Grab Bag now includes an assortment of 500 cards from five (5) different expansion sets. Available at Cactus website.
but generally, 50.
50 or 56 is probably best. The Higher you go, the more defense you can add in, in case you're facing another TGT deck. That way you'll have an advantage over them. Also try to say 1 color on defense so you can block their ra's.Daniel