I'm pretty sure gothitelle plays Tropical beach, and also only plays four energy, four DCE. So I'd suggest:
-3 psychic energy
+2 tropical beach
+1 skyla
I'm personally not in masters, but I think this change was implemented so masters would get more prize support, Imagine U.S Nats having 3 times better prizes for just paying $5.
Many masters at my league stopped playing because even if they did make cut, they could lose round one of cut and get...
I think this means that they "cut" to a certain amount of players day two, restart with fresh records and the top 8 of that mini tourney go on to top cut.
Edit: Post 100!!