New Redemption Grab Bag now includes an assortment of 500 cards from five (5) different expansion sets. Available at Cactus website.
Lackey is your friend big-time especially when it comes to deck-building!
For me deck building often starts with an idea or topic which is tempting me (e.g. a Theme like Genesis or a concept like Musicians/Judges/Egyptians or individual cards I'd like to play etc.).Then I read about it in forum and/or LoR and check in Lackey regarding appropriate cards and possible synergies. My cards are sorted by type and within type by brigade (e.g. Type = Heroes then all Heroes sorted by brigade) while multibrigade comes last and dual aligned cards have their own section.
But there is one a fly in the ointment:Without any speed and/or searching (without drawing you need massive searching) from/in all piles it seems no competitive T1 deck can be built anymore. At least this is my opinion and experience.