I was skimming through these scans from Japan's DP5, which will presumably be our Legends Awakened, and noticed something interesting. On all of the Deoxys cards, there is some smaller text next to the name that I can only assume says Normal Form, Attack Form, etc. This is not something that we've seen on previous Deoxys cards. Similar to the rulings on Shellos/Gastrodon and Burmy/Wormadam, I expect that you'll be allowed to run four copies of each form in a deck, making it a much more reasonable proposition than in past sets to play a deck focused on Deoxys. Being able to switch back and forth between Attack and Defense form seems like a formidable strategy, and being able to pull out Normal for a big hit, or Speed for sniping or free retreat are useful little tricks. Other than the obvious problems with the 2x psychic weakness and the autoloss to Mewtwo Lv.X, is a deck with 16 Deoxys potentially viable? What else would go in that deck to make it competitive? Doing a deck search on every single turn is likely to take forever, so I'd think you could win a lot of Swiss rounds on time if you could guarantee yourself an early lead on prizes. Seems like a fun deck to play, if nothing else.