RE: Future Metagame Speculation
Keldeo is probably for Rushing In and Ultra Balls are probably for thinning your deck by ditching stuff from your hand. Lasers are more for early pressure with with Thundurus, but you can also OHKO with Kyurem, 3 Deoxys and HTL/Virbank.
I kind of want to build this deck but focus more on Lugia. Maybe do something like 4 Deoxys, 3 Thundurus, 3 Lugia, and maybe 1 Benchtini and/or Kyurem. Not sure what the best build for Plasmabox will be, but I played a few games with a standard list, and I didn't really like it that much, which is disappointing because I really want to like it.