You will naturally outlast Luxray if you play a very strong build. Rescue Energy should go on Gyarados each turn. This is what I call a "trade deck". Starting 2nd/3rd turn of the game, you will start trading prizes with your opponent. The moment one player DOES NOT take a prize, the game is over, basically. With Rescue energy, you will outlast even the strongest Luxray builds. They need much more than you do to win. Donphan would be terrible just because it doesn't help your matchup against anything. It actually reduces your matchup against some things just because of the lost consistancy. I would go with the luxray, crobat, turn, but it is still bleh IMO. TBH, just go straight Dos. You will, 9 times out of 10, outlast and beat Luxray anyways. I don't see too many things where Ray, Bat, and Turn would really help.