What is steelix weak against?

Steelix is weak against the following types:

1. Ground: Steelix takes double damage from Ground-type moves due to its Steel typing, making it highly vulnerable to Ground-type attacks such as Earthquake.

2. Water: Steelix is weak to Water-type moves, which can easily exploit its weakness to its low Special Defense stat. Water-type moves like Surf and Hydro Pump can deal significant damage to Steelix.

3. Fighting: Fighting-type moves are also super effective against Steelix, due to its Rock typing. Fighting-type moves such as Close Combat and Focus Blast can deal heavy damage to Steelix.

4. Fire: Fire-type moves are super effective against Steelix due to its Steel typing. Moves like Flamethrower and Fire Blast can deal considerable damage to Steelix.

5. Ground: Steelix also takes double damage from Ground-type moves, due to its Steel typing. Ground-type moves are super effective against Steelix and can deal heavy damage to it.