Hatterene - 7 Star Primarina Raid - Solo - Pokemon Scarlet/Violet

Hatterene @ Clear Amulet
Ability: Magic Bounce
Tera Type: Psychic
EVs: 252 HP / 6 SpA / 252 SpD
Modest Nature
- Stored Power
- Mystical Fire
- Calm Mind
- Light Screen

Vitamins: 25 HP Up (or Health Mochi), 25 Zinc (or Clever Mochi)
Feathers: 2 Health Feathers, 6 Genius Feathers, 2 Clever Feathers

* The last 2 EVs of the 510 total do not affect stats but are included so that the EV diagram in game shows the EVs as maxed

Stats at lvl 100 w/ perfect IVs:
HP : 318
Sp.Atk.: 339
Sp.Def.: 305
Speed : 94

NPC Advantages: no requirements. gardevoir (life dew), sylveon (moonblast), and arboliva (seed sower) help

Strategy: 3x mystical fire, light screen, wait for primarina to clear her stats. 2x mystical fire, 2x calm mind, light screen, 4x calm mind, light screen, terastalize, stored power to victory

Notes: mystical fire or light screen could be swapped for psychic terrain for a more offensive, less defensive build, which might clear the raid a little more quickly. you'd use psychic terrain right before you start attacking with fully-buffed stored power (like in the hypno video).

Pros: tera type matches base type, excellent spatk and spdef stats, no weaknesses, resists psychic, magic bounce ability prevents sing from inducing sleep on hatterene and instead reflects it to primarina to put her to sleep (and since this means hatterne doesn't need a move like misty terrain to counter sing, being outsped isn't a big deal). clear amulet prevents spatk debuffs (normally 30% chance) from moonblast, mystical fire debuffs spatk through shield while charging tera orb. stored power has a base power of 260 after 6 calm minds, 100 accuracy and deals STAB damage (tera-boosted when terastalized). calm mind buffs spatk and spdef. light screen halves damage from all of primarina's attacks for 5 turns.

Cons: tera type not supereffective, outsped by primarina, mediocre HP stat, can only buff one spdef stage per turn, can only buff one spatk stage per turn.

Overall Rating: 8/10