

Sample team?
https://pokepast.es/8f66f376a770234e
This is a team I have personally enjoyed using on ladder and have had some success using. Its easy to use and can easily top ladder if you get the hang of it(got me to 1500 before optimizations).
Writing this took me 1hr(my first time writing these) it was rlly fun as well as the teambuilding and optimizations taking 5-6 hrs ish?
Drifting put this as a sample team :) its much easier to use then the other teams on the list. Beginners need HO!!!
Ty to
Fille for formatting help
Any further optimizations can be sent to my dms currently spookygenisu on discord.
Shroodle HO

Impidimp @ Light Clay
Ability: Prankster
Level: 5
Tera Type: Steel
EVs: 76 HP / 196 Def / 196 SpD / 36 Spe
Bold Nature
IVs: 0 Atk
- Light Screen
- Reflect
- Parting Shot
- Dazzling Gleam
Explanation
Impidimp is one of the only pokemon in the tier with prankster, which allows it to always go first setting screens up, supporting the sweepers and helping them get the setup required. Tera Steel was chosen because It resists/is immune to all 3 of impidimps weaknesses. I maxed out its defensive stats and plugged the rest into speed. 0 ATK is used to take less damage from foul play(not common but optimal).

Shellder @ Eviolite
Ability: Skill Link
Level: 5
Tera Type: Ice
EVs: 236 Atk / 76 SpD / 196 Spe
Jolly Nature
- Shell Smash
- Icicle Spear
- Rock Blast
- Liquidation
Explanation: This is the main wincon of the team and one of the best sweepers in the tier. Shell smash allows it to outspeed every scarfed pokemon in the tier besides voltorb(which is never seen). Liquidation hits common threats like Larvesta, Numel, and manages to 2HKO Koffing. Rock Blast is a powerful move that can hit Mareanie, Tera Fire Voltorb on predictions, A-shrew, Snover, and anything that might tera something weird that you dont want to hit with loquid or icicle. Finally, we have Icicle spear, which hits dragon, flying, grass, and ground types for super effective damage. Tera Ice is chosen because it permits shellder to OHKO mons of moderate bulk without super effectiveness.
Important Rolls:
VS Mienfoo before tera: +2 236+ Atk Shellder Icicle Spear (5 hits) vs. 0 HP / 196 Def Eviolite Mienfoo: 20-25 (95.2 - 119%) -- approx. 6.3% chance to OHKO
After Tera:
+2 236+ Atk Tera Ice Shellder Icicle Spear (5 hits) vs. 0 HP / 196 Def Eviolite Mienfoo: 30-35 (142.8 - 166.6%) -- guaranteed OHKO
Otherwise you can tera for a guaranteed KO on other mons that I forgot the rolls for.

Numel @ Eviolite
Ability: Simple
Level: 5
Tera Type: Grass
EVs: 116 Def / 236 SpA / 76 SpD / 76 Spe
Modest Nature
- Flame Charge
- Fire Blast
- Earth Power
- Growth
Explanation: Numel is an extremely powerful sweeper if you can fcharge and growth on it, killing a majority of the meta with OHKO's. Tera grass is used to counter water/ground moves, converting both of the weaknesses to resistances, as well as permitting setup on foongus. 76 speed evs are ran to outspeed every relevant mon(including scarf gothita) after just one boost. Flamethrower and earth power are powerful STAB attacks that are even further boosted by growth. I initially had tera-ghost to avoid mienfoos, but I'm finding that it doesnt change anything rlly and grass is more relevant.
Important Rolls(changed by fb>fthrower)
+2 236+ SpA Numel Flamethrower vs. 0 HP / 0 SpD Eviolite Vullaby: 16-21 (69.5 - 91.3%) -- 93.8% chance to OHKO after Stealth Rock
+2 236+ SpA Numel Flamethrower vs. 0 HP / 36 SpD Eviolite Mienfoo: 18-22 (85.7 - 104.7%) -- guaranteed OHKO after Stealth Rock and 1 layer of Spikes
I put a spike to simulate Numel's flamecharge on the Mienfoo.
Warning: DONT FCHARGE INTO A TEAM WITH VULLABY, CLEAR THE VULL BEFORE LETTING NUMEL COME IN.

Vullaby @ Eviolite
Ability: Weak Armor
Level: 5
Tera Type: Ground
EVs: 76 Def / 236 SpA / 196 Spe
Timid Nature
IVs: 0 Atk
- Nasty Plot
- Air Slash
- Tera Blast
- Endure
Vullaby is a HO staple that can setup freely on mons like mienfoo (the most popular mon in the tier). Weak armor is a great ability that counters its mid speed tier. The Ground Tera Type was chosen in order to be immune to elect moves, as its abusers (voltorb and wattrel) are the greatest bane to its existence. Nasty Plot helps it setup. Air slash is a powerful stab attack that hits many mons like Mienfoo and Timburr for huge damage). Terablast Ground allows it to hit steel and other flying resistant types for super effective damage. Finally, endure is a bit of a weird pick that guarantees a weak armor boost, further boosting speed, which can come in clutch. I maxed out its SPA, hit eviolite numbers and a good enough base speed.
Important Rolls
+2 236+ SpA Vullaby Air Slash vs. 0 HP / 36 SpD Eviolite Mienfoo: 30-36 (142.8 - 171.4%) -- guaranteed OHKO
+2 236+ SpA Vullaby Air Slash vs. 0 HP / 156 SpD Eviolite Timburr: 30-36 (125 - 150%) -- guaranteed OHKO
+2 236+ SpA Tera Ground Vullaby Tera Blast vs. 116 HP / 84 SpD Eviolite Tinkatink: 26-32 (113 - 139.1%) -- guaranteed OHKO
+2 236+ SpA Tera Ground Vullaby Tera Blast vs. 132 HP / 0 SpD Eviolite Glimmet: 60-72 (260.8 - 313%) -- guaranteed OHKO

Diglett-Alola @ Focus Sash
Ability: Tangling Hair
Level: 5
Tera Type: Ground
EVs: 36 HP / 236 Atk / 36 Def / 196 Spe
Jolly Nature
- Protect
- Stealth Rock
- Memento
- Earthquake
Explanation: This is a HO Staple that is the fastest mon with stealth rock as well as having protect to not get sash broken by foo. It also has Memento to support Shellder, Numel, and Shroodle. Finally, I gave it STAB earthquake, which allows it to OHKO other common leads like Glimmet and Tinkatink. I maxed out speed in order to guarantee stealth rock and always get memento off on every mon besides Voltorb-H, Ground+Steel is a great typing that allows it to be immune to Tinkatinks T-Wave. Tera Ground is used just incase you ever REALLY need to kill Tinkatink T-1
Important Rolls
156 Atk Diglett-Alola Earthquake vs. 132 HP / 100 Def Eviolite Glimmet: 36-48 (156.5 - 208.6%) -- guaranteed OHKO
156 Atk Diglett-Alola Earthquake vs. 116 HP / 156+ Def Eviolite Tinkatink: 14-20 (60.8 - 86.9%) -- guaranteed 2HKO
156 Atk Tera Ground Diglett-Alola Earthquake vs. 116 HP / 156+ Def Eviolite Tinkatink: 20-28 (86.9 - 121.7%) -- 93.8% chance to OHKO

Drifloon @ Oran Berry
Ability: Unburden
Level: 5
Tera Type: Dragon
EVs: 116 Atk / 164 Def / 4 SpD / 196 Spe
Jolly Nature
IVs: 19 HP
- Acrobatics
- Will-O-Wisp
- Memento
- Defog
Explanation: Last but not least, we have Drifloon. Drifloon carries acrobatics, a powerful stab attack that can hit fighting types for super effective damage. Will-o-wisp is used to cripple physical attackers that could cripple the rest of the team like Mienfoo, Meowth, Pawniard, and Nymble. Memento is ran to support the sweepers (espec shellder), and defog allows me to take off rocks/spikes on my side, ending Glimmet hazard stacks. Oranberry Unburden is a powerful combo allowing me to hit 34 speed upon activation, allowing me to outspeed every relevant presence in the metagame, even after scarfs. Tera Dragon allows me to 1v1 Voltorb-H as well as making me able to get defogs/mementos off vs it.