Raikou SM4 wouldn't be used as a one prize attack (although it's nice to mess up the prize trade) but a set up in the early turns while you establish your board state. I would try to include 3-4 roughs seas to win you the Trev match, (trading Raichus for Raikous) if not Giratina Promo.
Also...
I think an underestimated deck for expanded is Raichu/Yanmega as it has access to cards such as Head Ringer, Muscle Band/Silver Bangle, Sacred Ash and Colress - Raichu has a great match up against Yveltal (hit for weakness) and also Seismatoad (Yanmega hits for weakness and can OHKO with a tool...
4 exp. share, 4 pokepuff, 4 max elixir, 4 sycamore, 4 trainers' mail and most other staples.
he just ran talonflame and lucario... nothing more, nothing less
This is probably one of the weirdest decks I've ever though of... The idea is to attack with Mega Gardevoir (the one from Steam Siege) discarding A LOT of your benched Pokemon and hopefully taking a few KO's in the process, then coming with Vespiquen and hitting big Numbers. Vespiquen is also a...