From my experience, ( note I haven't played the ones from tlg, but my own decks using those themes) they are fairly good, but over all, a little lacking. The spiritual warriors and Romans decks were, and still are, nerfed quite a bit by colesium, but have a bit of thier power back with the new children of light, TW, and TGC. Strong, fast deck, and really fun to play. The flood survivors, on the other hand, are really powerful, with many strong characters and enhancements, but are severely lacking in speed imo. If you can get some more speed in a flood survivors/antediluvians deck, I think it could be a very good deck but, it's just so hard to do that. I had to resort to seven years of plenty, just for the extra d1 to try and speed it up. I don't think I won a single game with mine. All he games I played were 4/5. It was really fun, but it is just too slow.
