Assist, Mean Look and Block are now banned as a Trademark.
Assist can basically sweep any team with Assisted V-Create, especially since Victini can carry Sunny Day to power it up even more, OHKOing even resists by only switching in. Even Chimchar becomes viable on an Assist team. It is beatable by only very specific things, like Powder cores (lol), Flash Fire and bulky resists with Rain Dance, but obviously this shouldn't be necessary.
Mean Look and Block are just very uncompetitive for the same reason Shadow Tag is, but now anything can basically trap anything and set up, stall out or just KO it. Yes, it requires some skill to successfully pivot them in, but it's mainly about the matchup that can basically make some Pokemon useless and you can't prepare for it since many Pokemon can carry it: Charizard, Ferrothorn, Landorus, Metagross, Mew, Slowbro, Tyranitar, Bisharp, Gardevoir and Gengar and that's only in OU. Pokemon from other tiers can easily become viable with just Mean Look or Block for the sole reason that they can remove certain threats against their team, making them useless.
Parting Shot is not getting quickbanned.
Parting Shot may be banned in the future, if there's a reason for it, but from what I've seen so far it isn't overpowered. Yes, it can help with pivoting and get your stats down, making prediction easier, but it also requires a teamslot, so you're playing 5 vs 6 otherwise. With good plays you can easily get around it, as you can boost your stats, status the opponent or just hit them hard enough that it still does some damage.
___________________________________________________________________________________________________________________________
Now I'll just post some sets that I've enjoyed using outside of Assist spam.
Heatran @ Choice Specs
Ability: naturepower
EVs: 248 HP / 252 SpA / 8 SpD
Modest Nature
IVs: 0 Atk / 30 Def
- Fire Blast
- Hidden Power [Ice]
- Earth Power
- Dragon Pulse
Nature Power is really useful as a Trademark, as you can damage the opponent on the switch-in, letting it pick off damaged Pokemon and against Pokemon like Breloom even kill them after Spikes damage. It's a very useful safety net, especially against Belly Drum sweepers, which are usually in the KO range. I barely ever used its other moves since it usually killed things, so something that beat it was switched in, but it is quite strong when it manages to get in, so the opponent will have to pivot around its moves as well.
Serperior @ Leftovers
Ability: Contrary
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk / 30 SpA / 30 Spe
- Leech Seed
- Synthesis
- Leaf Storm
- Hidden Power [Fire]
Serperior is quite good in this metagame, even without a Trademark. Due to its Contrary ability, it can safely beat Parting Shot strategies, since it gets a +1 SpA boost from it. Additionally, due to its high speed, it can easily set up against Pokemon like Manaphy, and once it gets started few things can safely handle it. For the moves, only Leaf Storm and HP Fire are actually needed from my experience, I've never used Synthesis and Leech Seed is rarely useful, so you can swap them for Dragon Pulse or other attacking moves, but I've never been in a situation to use them either (although maybe Dragons get more popular later).
Manaphy @ Leftovers
Ability: heartswap
EVs: 252 HP / 252 SpA / 4 SpD
Serious Nature
- U-turn
- Knock Off
- Scald
- Heal Bell
I'm not sure about the EVs, since the meta is new. I didn't want to lower any stat, so the nature is neutral... But anyway, this Manaphy has actually swept teams when it stole a Shell Smash boost. It is made as a pivot that can switch into set-up sweepers which may be quite threatening otherwise. Its moves are general pivot moves, Scald as a STAB that can burn for status, Knock Off to remove items and U-turn to pivot into another Pokemon. Heal Bell is a filler since my team didn't have status recovery yet, and Spore and WoW TMs are annoying. Either way, it can basically beat most Set-Up Pokemon and kill one of their team when it steals their boost.
Volcanion @ Choice Specs
Ability: willowisp
EVs: 248 HP / 252 SpA / 8 SpD
Modest Nature
IVs: 0 Atk
- Steam Eruption
- Fire Blast
- Sludge Wave
- Sleep Talk
I used this Volcanion on a team with double Parting Shot to lower all opponents offenses to -6, since the clause isn't implemented right, but I think it's good regardless. Will-o-Wisp is really useful as a Trademark, since you can neuter physical attackers and switch into them pretty easily. When you're in, something basically dies unless its a bulky Water-type and even then, Steam Eruption has a good chance of burning them if they survive. Basically a great pivot that can switch in, take a hit and kill something, before switching out again.
Scizor @ Scizorite
Ability: defog
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Roost
- Swords Dance
- Bullet Punch
- Superpower
Again, not sure about the EVs, but this is a really cool hazard remover. You should basically keep it in base form as long as you want to remove hazards, which is pretty reliable as Scizor can switch into a lot of hits and Roost when needed. Then when you think it can sweep or you don't need to keep hazards of the field (you killed the SR Trademark, it's late-game, etc.) then you can mega evolve and attempt to sweep with Swords Dance and Bullet Punch. Superpower is standard coverage to kill Steel-types and other types that resist it. Pretty cool 'mon!
Pangoro @ Air Balloon
Ability: partingshot
EVs: 248 HP / 252 Atk / 8 SpD
Brave Nature
IVs: 0 Spe
- Gunk Shot
- Superpower
- Knock Off
- Bulk Up
Chansey @ Eviolite
Ability: softboiled
EVs: 248 HP / 252 Def / 8 SpD
Bold Nature
IVs: 0 Atk
- Heal Bell
- Wish
- Protect
- Seismic Toss
This is a stall core for Trademarked. Basically, if the battle is going badly and the opponent can't do more than 50% to Chansey at -1, you can infinitely loop between Pangoro and Chansey, PP stalling the opponent as long as hazards are off the field. If they decide to switch, you can take advantage of that and beat that Pokemon and when the otherwise dangerous Pokemon comes in, you can continue the loop, until they don't have any PP left anymore, so if you play well you can use this to win quite reliably, quite nice for stall teams!
There's even a replay of ~200 turns here.
Some things that I've not seen a lot yet are Mew with Transform and stat-lowering moves, especially Screech Tyranitar with Pursuit. It'd be interesting to see how those work. I've also used Magic Bounce Sableye and Diancie, which are pretty good for beating status and Parting Shot TMs, but not insanely good so I decided not to post about them. Hopefully this post gave y'all some ideas!