Bulky Physical Sweeper:
Koraidon @ Assault Vest
Ability: Orichalcum Pulse
Tera Type: Fire -OR- Steel
EVs: 52 HP / 232 Atk / 224 Def
Impish Nature
- Drain Punch (Fighting STAB)
- Dragon Claw (Dragon STAB)
- Flare Blitz (Tera Fire STAB) -OR- Iron Head / Heavy Slam (Tera Steel STAB)
- Crunch / U-turn (Psychic Coverage)
Assault Vest, Tera typing, EVs, and Nature are all for as much bulk as possible while still being a threat with high Atk power. Drain Punch is for sustain, which is important in a bulkier set, ESPECIALLY if you're going for Tera Fire / Flare Blitz. However, you can use what whatever Fighting STAB you want, as long as it's not Close Combat, because that would defeat the purpose of this build. Dragon Claw because I don't care for Outrage. Tera Steel covers all of your weaknesses and pairing it with Iron Head gives you a way to hit Fairy and Ice types with super effective STAB damage. You can run Heavy Slam to specifically 1HKO Flutter Mane, barring focus sash of course. Tera Fire offers the same defensive coverage against Fairy and Ice but Fire isn't super effective against Fairy types like Steel is. However, a Sunny Day enhanced Tera Fire Flare Blitz should still 1HKO Flutter Mane. I prefer U-Turn over Crunch, as they both hit Psychics for super effective damage but U-Turn also allows you to pivot away from Ground/Water types (if you're Tera Fire) or Fighting/Fire types (if you're Tera Steel).
Bulky Support for Hazard / Weather Teams:
Koraidon @ Heat Rock -OR- Rocky Helmet
Ability: Orichalcum Pulse
Tera Type: Dragon -OR- Fighting
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Bulk Up / Helping Hand / Sunny Day
- Breaking Swipe / Screech -OR- Dragon Tail / Roar
- Low Sweep / Scary Face
- Rest
Versatile set that you can customize to your liking to fit your teams needs. Rest is the only move I wouldn't recommend swapping. Heat Rock for weather support or Rocky Helmet for hazard teams. Bulk Up in my opinion is a must, as it allows you to hit hard with STAB utility moves like Breaking Swipe and Dragon Tail, all while upping your DEF. But if you don't care about doing damage then either take Helping Hand for your hazard teams or Sunny Day for your weather teams in case the weather gets reset and you aren't able to swap in and back out for whatever reason. Breaking Swipe to help weather teams break physical walls / Dragon Tail for hazards. Again, if you don't care about doing damage then take Screech for weather and Roar for hazards, as they essentially do the same thing but without dealing damage. Low Sweep is STAB and slows down their sweepers. Scary Face if you don't care about damage. I would highly recommend taking at least 1 damage move so that a Taunt doesn't ruin your day. Speaking of Taunt, if you really don't like Rest then you can take Taunt to cripple their supports, but to me the sustain from Rest is invauluable.
Fast Physical Late Game Sweeper:
Koraidon @ Loaded Dice
Ability: Orichalcum Pulse
Tera Type: Fire
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Collision Course
- Flame Charge
- Scale Shot
- Swords Dance
This is an alternative that's as close to the standard set out of the 3. It's for people like me who don't like Choice items or Life Orb sets, and don't want to run Leftovers all the time because that's boring. Loaded Dice for Scale Shot, which is your Dragon STAB. Tera Fire for Flame Charge as well as Fairy and Ice resistance. Scale Shot and Flame Charge increase your speed with each use. Collision Course is Fighting STAB. EVs, Jolly Nature, and Swords Dance for max speed and max attack. Just watch out for Flutter Mane, because even with max EVs and Jolly Nature she can still outspeed you if you haven't gotten a Flame Charge or Scale Shot off yet. If you see her on the enemy team you must wait. And if they bring her out after you switch in then you have to switch back out or instantly Tera otherwise you are toast.