[National Dex] Hydreigon

[Zneon]

Hydreigon @ Groundium Z
Ability: Levitate
EVs: 252 SpA / 4 Def / 252 Spe
Timid Nature
- Nasty Plot
- Dark Pulse
- Earth Power
- Roost

Hydreigon stands as one of the most dangerous wallbreakers in the metagame. After a Nasty Plot, there are almost no defensive checks to it other than specially defensive Clefable, Blissey, Chansey, and Mandibuzz, and its solid bulk and access to reliable recovery in Roost allow it to take advantage of prevalent Pokemon such as Heatran, Toxapex and Slowbro, though it has to be wary of Toxic from the former two. Earth Power allows Hydreigon to beat Pokemon such as Toxapex and Heatran while also being able to threaten Pokemon such as physically defensive Clefable, Tapu Fini, and Mega Tyranitar hard after a Nasty Plot boost. However, Hydreigon's Speed tier can get it outsped and revenge killed by Pokemon such as Mega Lopunny, Dragapult, and Cinderace, so checks to them such as Toxapex and Clefable are great teammates. Additionally, Hydreigon appreciates pivoting support from Pokemon such as Mega Scizor, Cinderace, and Mega Lopunny that can safely bring it in.

 

[Jho]

Hydreigon @ Groundium Z
Ability: Levitate
EVs: 252 SpA / 4 Def / 252 Spe
Timid Nature
- Nasty Plot
- Dark Pulse
- Earth Power
- Roost

Nasty Plot Hydreigon stands as one of the most dangerous wallbreakers in the metagame. After a Nasty Plot, there are almost no defensive checks to it other than Specially Defensive Clefable, Blissey, Chansey, and Mandibuzz, and its solid bulk and access to Roost allow it to take advantage of prevalent Pokemon such as Heatran, Toxapex and Gliscor move the other point about Roost up here too. Earth Power allows Hydreigon to beat Pokemon such as Toxapex and Heatran while also being able to threaten Fairy-types such as Clefable and Magearna hard after a Nasty Plot boost Make this a point about Tectonic Rage being able to threaten Fini/Phys Def Clef/ Mega Tyranitar etc at +2. Roost acts as reliable recovery for it. However, Hydreigon's speed tier can get it outspeed and revenge killed by Pokemon such as Mega Lopunny and Dragapult definitely mention Cinderace here, so Pokemon that can check them such as Toxapex and Clefable are great teammates. Additionally, Hydreigon appreciates pivoting support from Pokemon such as Mega Scizor, Cinderace and Mega Lopunny which can safely bring it in.

In the part about Pokemon Hydreigon can take advantage of, replace Gliscor with Slowbro as I think its a much easier example to make. Also make a small amendment that Hydreigon should be wary of getting Toxicd by Heatran and Toxapex as it really hates being Toxicd.

1/1 Good Stuff
That's a lot of additions so you might have to cut some wording in places to get it closer to the 1,000 character mark but should be fine

 

[kt3]

GP 1/1, standard colors

hydreigon

Hydreigon @ Groundium Z
Ability: Levitate
EVs: 252 SpA / 4 Def / 252 Spe
Timid Nature
- Nasty Plot
- Dark Pulse
- Earth Power
- Roost

Hydreigon stands as one of the most dangerous wallbreakers in the metagame. After a Nasty Plot, there are almost no defensive checks to it other than Specially Defensive specially defensive Clefable, Blissey, Chansey, and Mandibuzz, and its solid bulk and access to reliable recovery in Roost allow it to take advantage of prevalent Pokemon such as Heatran, Toxapex and Slowbro, (AC; guessing this was what you were going for) could though it has to be wary of Toxic from the former two. Earth Power allows Hydreigon to beat Pokemon such as Toxapex and Heatran while also being able to threaten Pokemon such as Physically Defensive physically defensive Clefable, Tapu Fini, (AC) and Mega Tyranitar hard after a Nasty Plot boost. However, Hydreigon's speed Speed tier can get it outspeed outsped and revenge killed by Pokemon such as Mega Lopunny, Dragapult, (AC) and Cinderace, so checks to them such as Toxapex and Clefable are great teammates. Additionally, Hydreigon appreciates pivoting support from Pokemon such as Mega Scizor, Cinderace, (AC) and Mega Lopunny which that can safely bring it in.

 

[Eisenherz]