Question

What is Stellar-type weak/resistant to?

Answer 1

The Stellar type has no inherent type properties and instead uses the Pokemon's original type when determining type matchups.

Uniquely, the Stellar type has no defensive properties, as a Stellar-type Pokémon will always retain its original typing's Defensive properties, aside from the Terastallized state itself being weak to Stellar-type Tera Blast and Tera Starstorm.

Stellar type (Bulbapedia)

Comments

You might want to rephrase that. The Stellar Type is weak to whatever the user’s original typing was weak to.

---

The Stellar type isn't weak to anything. It only uses the original type to consider defensive properties.

---

Yeah, I guess Stellar ITSELF has no weaknesses. It just sounds like you’re saying a Pokémon terastillized as Stellar would behave as a typeless Pokémon .

---

My bad. I reworded it to hopefully make it clearer.

---

So Terapagos only has one weakness in Fighting? Even more broken

Answer 2

To be clear, Stellar shares the defensive attributes of the Pokémon's original type, and it's only weakness that comes from the type itself is Stellar. So, if you Tera your Pikachu, it will be weak Ground AND Stellar, but keep its
original resistances.

Comments

Amethyst said that already.

> Uniquely, the Stellar type has no defensive properties, **as a Stellar-type Pokémon will always retain its original typing's Defensive properties, aside from the Terastallized state itself being weak to Stellar-type Tera Blast and Tera Starstorm.**