>>28236436It's not perfect, but it works. I was running two Battle Compressors, but just took one out a day or two ago when I picked up the second Shaymin. I'll pobably switch in the second Battle Compressor for a Bursting Balloon or maybe an Unown.
I have a post-rotation Standard variant in which I just took out Az and the Compressor.
In all honesty, those were decently lucky starting hands in which I was able to Shaymin into Sycamore/N on turn one. It's certainly not every match I can pull off the first turn swing, but it is fairly consistent with the amount of draw I have. I know the guy that won Seniors Class at Worlds was running 3 Shaymin, so I imagine his deck was even more consistent.