New Redemption Grab Bag now includes an assortment of 500 cards from five (5) different expansion sets. Available at Cactus website.
777Godspeed is correct. "Topdeck and/or underdeck the rest" is the wording we use to allow you to split them up.
Divination includes the phrase "in any order", so it's safe. AFAIK, "in any order" is always the requirement to change the order, so there are "topdeck and/or underdeck" cards that do require you to maintain the order.