[RATE MY TEAM] My first ever VGC team

[Eckley]

Before I continue breeding the team, I would like people's opinion on something.
Whimsicott was originally in the team for thundurus, but since he can't paralyse Swampert who is my main attacker, I'm not sure if Whimsicott is necessary, so I was thinking about switching it for trevenant, who gets access to WoW so I don't have yto rely on bringing Rotom if I need to burn something. He's also bulkier than Whimsicott, and because I probably won't need to put any EVs into speed, I can put those into making him able to take hits a bit better, and it's another way to potentially stop cress setting up a TR since it's slower