Nalorium asked me to explain my team from last week as the highlight, so here are some of my thoughts from the teambuilding process:
The team I used week 3 against Caetano93 was different than my normal approach; one of my observations from Caetano93's first two teams was that he adapted his playstyle to match-up well against the norms of his opponent very well. I wanted to deviate from my norm of using things like Latios (previously used it in 12 consecutive games) and Ferrothorn (everyone spams it, but I have high usage as well) as well as stray from my typical bulky-offensive approach in order to not have weaknesses overlap. In addition to this, I wanted to be super conscious of status moves and status spread due to the wide array of potential poison and burn spreaders in the metagame.
After taking a look through both Caetano93's team history as well as my own, I determined that I wanted to use an Ice resist that was not Rotom-Wash and I wanted to use a Keldeo and Thundurus-Therian check that was not Latios. There were some other early parameters I set on my team construction process, but few of them stood out to this specific team like these two. Also, I was watching some games from prior weeks and I realized there was a structure used multiple times that had a difference pace than my norm that seemed quite effective, making me very curious. This archetype being the Sand balance that Insult used week 1 and SoulWind used week 2, both seeming to be loosely based off of an older McMeghan team that utilized Amoonguss over Celebi.
What I really liked about these teams is how they made use of Celebi, which does very well against common Rain options like Thundurus-Therian lacking Nasty Plot, Keldeo, and Breloom. They knew that the main way to take advantage of it was Spikes from Ferrothorn or Skarmory, so they paired it with both Magnezone, to remove the Spikers themselves, and Excadrill, to remove the Spikes they set. Right off the bat, I decided I wanted to try to give this archetype my own spin, so my team started with the trio of Magnezone, Excadrill, and the aforementioned Celebi. From there, adding Tyranitar was a formality -- it provided Sand to further dissuade Rain, it gave the team a Pursuit trapper for enemy Psychic types, and it had potential to either function as a special tank or a surprise revenge killer. Ultimately, I went with the latter, leading to a Choice Scarf set, but there are absolutely variants of this team that can make use of the former if they opt for Choice Scarf Landorus-Therian as the fifth member. However, I preferred Gliscor as a more defensive member, which also solidified the concept from before about being strong against opposing status due to it having Protect + Toxic Orb with Poison Heal to shrug off opposing status. Gliscor + Celebi made it so that it was hard for status to make a long-term dent in my gameplanning. Gliscor's main purpose was to give the team a Ground immunity and I even opted for a more physically defensive set to help with Excadrill and Swords Dance Garchomp.
At this point, I had Magnezone, Excadrill, Celebi, Tyranitar, and Gliscor. This is the same first 5 of the team that Insult and SoulWind used I alluded to before. Their last was Gastrodon, but my teammate Posho advised Milotic and I actually quite liked it. I never intended to use Gastrodon here as I feel it leads to some very risky match-ups. For starters, Caetano had used Leftovers Jolly Mamoswine against me multiple times in recent tournaments and, as I said above, I wanted an Ice resist. This left me considering Slowbro, Milotic, and even Alomomola, but Milotic stood out due to it being a lot less passive. The combination of Scald, Refresh, and Toxic while being a mono-Water type offers a lot. It is not Pursuit weak like Slowbro, it is not piss weak and Wish reliant like Alomomola, and it sticks with the theme about being strong against status. As you saw in the game, it helped with the Kyurem match-up and it would have also checked Jolly Mamoswine, especially when paired with Rapid Spin + Magnezone support to rid the field of entry hazards.
I had my 6 at this point, but I did make some adaptations set wise. First off, I went with U-turn over Baton Pass on Celebi. This allowed for Scarf Tyranitar to have a foolproof trap against Latios in most scenarios, as we saw in my game, and it means that I do not get outright 6-0d by a bulky Nasty Plot Celebi, which decimated the prior variants of the team. It also allowed for slight chip on Life Orb Reuniclus and breaking the sash on Alakazam. Of course, the trade-off was being Pursuit vulnerable, but Caetano would likely anticipate Baton Pass the first time around and by the second time, Tyranitar will have taken 25-30% from U-turn plus entry hazards or other attacks potentially, so it felt like something I could minimize. Another thing I opted for was a physically defensive Gliscor with Ice Fang. I had some special defense investment, but I wanted to be strong against opposing Excadrill, Garchomp, and Substitute + Dragon Dance Dragonite. Celebi and Refresh Milotic made me feel a lot safer against Rotom-Wash and Alakazam, too, which made me feel ok not investing in special defense as much. Finally, I opted for a Magnezone set only seen once before -- Smogon Tour finals in the game between Luigi and SoulWind, which was on a team I made as well (although Luigi gets credit for creating the Magnezone set). Substitute + Charge Beam + Flash Cannon + Hidden Power Fire with Salac Berry allowed for me to get multiple kills in many games when facing Ferrothorn teams and Caetano had sky-high Ferrothorn usage, so I felt confident with this choice. I did not feel the need to use Sunny Day with my current Rain match-up or Balloon + Magnet Rise with my current Gliscor match-up.
I know this was pretty long (sorry Nalorium oops), but honestly this was just brushing the surface for me. There are so many intricacies and considerations to put into BW teambuilding. I will be posting my teams and thoughts on here and YouTube for all matches after the season ends in all likelihood.