Grassy Terrain has been a highly controversial topic in NU for the majority of generation 9, with many bans being at least partially influenced by it's presence, for example Oricorio-Pom-Pom, Oricorio-Sensu, Necrozma, Iron Thorns, and Cresselia. Despite the countless tier shifts and tiering changes which have occured throughout the generation, Grassy Terrain has managed to remain as a dominant and highly influential playstyle which has reinvented itself to invalidate traditional methods of counterplay. The difference between Grassy Terrain and other team compositions is the way in which it is able to invalidate almost all methods of counterplay and gameplay interaction, creating many scenarios where certain matchups are decided at turn one due to the nature of terrain sweepers and the limited defensive options available in the tier.
Unburden sweepers like Grafaiai, Drifblim, and to a lesser extent Hitmonlee are able to tailor their sets to beat specific checks and would-be-counters while also outspeeding the entiremetagame after Grassy Seed activates, which places immense pressure on teams to be able to cover them while still being viable into the rest of the meta. We've seen sets such as Throat Chop Grafaiai be created to stop Roar Vaporeon from phasing, Taunt to shut down Whirlwind, and Facade to setup on Wisp / Scald users. Drifblim has evolved constantly, with both Strength Sap and Substitute sets being able to shut down eachothers checks, and the invention of Tera Electric Thunder to OHKO Vaporeon at +1 before it gets a chance to Roar, or forcing it to Tera, opening the path for the rest of the terrain sweepers to win. Espeon is another Pokemon that has surged in popularity after a year+ of irrelevance, this is because it can completely ignore any phasing attempts from Whirlwind Copperajah, Roar Houndstone, and Roar Vaporeon, as well as Toxic from Gligar and Bellibolt thanks to Magic Bounce. Espeon also takes advantage of the Grassy Seed defense boost to break through teams with powerful Stored Power boosts which can even tear through Chansey and Bronzong after enough Calm Minds.
Perhaps the toughest part about dealing with Terrain is that these classic terrain abusers can be partnered with a myriad of unpredictable Pokemon like Scrafty, Drednaw, Decidueye, Reuniclus, Raikou, Chandelure, and Articuno-Galar, depending on team composition. While it can be argued that nothing on Grassy Terrain is individually broken or lacking in checks, what cannot be argued is the immense strain it places on team building by being malleable and dynamic. The level of constraint terrain places on teambuilding is viewed by many as unhealthy, oppressive, and ultimately a negative influence on the metagame as a whole. Gameplay loops forced by Grassy Terrain can often become extremely uninteractive, which is a clear sign that it inhibits skillful play and is an uncompetitive element of the tier.
After much discussion and deliberation amongst the community, internal discussion with the NU Council, and conversations with the Tiering Admin team, we have settled on Thwackey as the suspect target, as it is the only consistent terrain setter that sees 100% usage on terrain teams at this point in time. However, if Thwackey is banned and terrain is still deemed to be an issue down the line with people resorting to Grookey or Arboliva, then we will re-assess whether further action needs to be taken. For the time being, please only discuss Thwackey, as that is what this specific suspect is centered around.
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The instructions to participate in this test are as follows:
- Create a new account on PS. You do not have to follow any specific naming convention, but your suspect account must have never played a game in NU before this suspect test went up or you will not receive valid requirements (resetting W/L does not count for this - the account you use must never have played NU before the test, full stop.
- At any point on your new account, use the command /linksmogon on Pokemon Showdown! You will receive instructions on what to do once you run this command.
- Double check that you're listed as a voter here! If you aren't listed as a voter despite having valid reqs, please contact myself, Rabia, or a member of staff.
- If you have any questions about this new process, feel free to PM me.
The requirement to vote in this suspect test is a COIL value of 2800. The deadline for getting requirements will be Thursday, April 16th at 7pm GMT+11.












